Document Actions

Index

Full Index

* A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Return to top

A

ABS function

abstract expression

abstract variable

ACOS function

add_offset in NetCDF files
   attribute for packing data
   in NetCDF files
   setting scale/offset for var in a netCDF file
   RETURN=NC_OFFSET

ALIAS
   definition
   SHOW ALIAS

aliases for Ferret commands
   ALIAS for DEFINE ALIAS
   COLUMNS for SET DATA/FORM=DELIMITED
   FILE for SET DATA/EZ
   FILL for CONTOUR/FILL
   LET for DEFINE VARIABLE
   PAUSE for MESSAGE
   SAVE for LIST/FORMAT=CDF
   SAY for MESSAGE/CONTINUE
   UNALIAS for CANCEL ALIAS
   USE for SET DATA/FORMAT=CDF

ALINE pplus command

ambiguous coordinates message

analysis techniques
   curvilinear coordinate data
   polygonal coordinates
   sigma coordinate data

animations
   FRAME
   general discussion
   on the fly
   viewing
   outside tools for

anomaly
    example

append
   slab to NetCDF, example
   time to NetCDF, example
   time steps to NetCDF file, notes about
   to Vis5D file

arguments
   quoted
   GO script

arrow
   text labels
   VECTOR command
   vectors drawn as arrows

ASCII data
   accessing
   output
   reading "delimited"
   reading, examples
   SET DATA/EZ

ASIN function
   Arcsine

ASN
   regridding transformation

aspect ratio
   SET WINDOW/ASPECT

association
   @ASN regridding

ATAN function

ATAN2 function

attributes of variables, datasets
   adding new
   CANCEL ATTRIBUTE
   coordinate variables
   DEFINE ATTRIBUTE
   define variable from
   editing
   Ferret access to
   global
   in output files
   inherit from a variable
   keywords/syntax
   NetCDF attributes, discussion
   NetCDF global attributes, discussion
   of non-netCDF variables
   scale & offset, packing data
   SET ATTRIBUTE
SET ATTRIBUTE/LIKE=
   SHOW ATTRIBUTE
   SHOW DATA/ATT

autocorrelation
   TAUTO_COR function
   XAUTO_COR function

AVE
   regridding transformation
   transformation @AVE

average
   @AVE regridding
   monthly climatology
   over complex regions in space
   transformation @AVE

averaging filler
   @FAV transformation

axis
   axis, definition of
   /NOAXIS on plot commands
   box size, grid
   CANCEL
   CANCEL depth setting
   CANCEL modulo setting
   customizing plot axes
   DEFINE AXIS
   DEFINE GRID
   dynamic
   dynamic, definition
   formatting plot axes
   inheriting
   irregular, defining
   irregular, in SHOW AXIS
   /KEEP_AXISNAMES on SAVE
   label, plot axes
   limits, plot axes
   modulo
   monthly climatology, define
   monthly, defining
   multiple axis plots
   NetCDF axis definitions
   permuting
   plot formats
   PLOT/AXES
   PPLUS commands
   redefining
   regular, defining
   regular, in SHOW AXIS
   removing from plot
   RETURN=XAXIS etc.
   reversed
   reversing Z axis
   SET AXIS/modulo
   transformation
   units
   values, using

Return to top

B

background color
   indices for
   options

backslash syntax
    escaping special characters

backward derivative
   @DDB transformation

bar charts

batch mode
   gif output
   metafile output
   movie making
   postscript output
   -script
   -server

big-endian

binary data
   byte-swapped
   output
   reading
   record structure
   SET DATA/EZ

binomial smoother
@SBN transformation

bold

borders, land
   land.jnl
   land_detailed.jnl

bounds, axis
   NetCDF attribute
   NetCDF irregular axes
   on SAVE command

box, grid cells
   pseudo variables for axes
   relation to grid, region

boxcar smoother
   @SBX transformation

bullseye
   find local min or max

BYTEORDER
   byte-swapped files

Return to top

C

calendar
   360 day
   axis, discussion
   converting time for NetCDF
   default
   DEFINE AXIS/CALENDAR
   grids with calendar axis
   GREGORIAN
   Proleptic-Gregorian
   MODE CALENDAR
   NetCDF attribute
   NetCDF conventions
   NOLEAP
   regridding between
   SET AXIS/CALENDAR
   specifying time origin
   specifying time values
   standard calendar
   time axes

CANCEL

   CANCEL ALIAS

   CANCEL ATTRIBUTE

   CANCEL AXIS
      /ALL
      /DEPTH
      /STRIDE

   CANCEL DATA
      /ALL
      CANCEL DATA_SET

   CANCEL EXPRESSION

   CANCEL LIST
      /ALL
      /APPEND
      /FILE
      /FORMAT
      /HEAD
      /PRECISION

   CANCEL MEMORY
      /ALL
      /PERMANENT
      /TEMPORARY

   CANCEL MODE

   CANCEL MOVIE
   CANCEL REGION
      /ALL
      /I/J/K/L
      /X/Y/Z/T

    CANCEL SYMBOL
       /ALL

   CANCEL VARIABLE
      /ALL
      /DATASET

   CANCEL VIEWPORT

   CANCEL WINDOW
      /ALL

case sensitivity
   NetCDF variables
   writing to NetCDF

CDA transformation
   nearest neighbor above

CDB transformation
   nearest neighbor below

CDL file
   advanced usage
   definition of
   for Ferret conversion
   sample
   using

CF conventions: NetCDF standard

child_axis
   NetCDF

@CIA transformation

@CIB transformation

climatology
   climatological axes
   creating

CLSPLT
   pplus command

CMYK
   color postscript

COARDS
   definition
   NetCDF standard
   non-COARDS files

collections
   time series
   vertical profiles

color
   background, plot
   contouring
   custom control, lines
   custom control, shading
   Ferret control, lines
   Ferret controls, shading
   GO tools for
   hard copy
   in HDF movie
   lines
   lines, PLOT/LINE
MODE LINECOLORS
   of labels
   of labels, examples
   palette
   patterns
   PPLUS COLOR command
   PPLUS line color
   PPLUS PEN
   PPLUS shading
   PPLUS SHASET
   PPLUS SHASET PROTECT
   PPLUS SHASET RESET

color key settings
   CONTOUR/KEY
   FILL/KEY
   POLYGON/KEY
   WHERE to position

color_thickness
   for contour lines
   for lines

columns
   LIST/WIDTH=columns
   SET DATA/COLUMNS examples
   SET DATA/EZ/COLUMNS=
   SET DATA/STREAM/COLUMNS=

COLUMNS
   alias for SET DATA/FORM=DELIMITED

command
   abbreviated syntax
   Commands Reference
   continuation
   executing a Unix command
   SHOW COMMAND
   syntax of

command line
   starting Ferret
   Unix command

COMMON_YEAR calendar

compressing data
   COMPRESSI
   COMPRESSI_BY
   COMPRESSJ
   COMPRESSJ_BY
   COMPRESSK
   COMPRESSK_BY
   COMPRESSL
   COMPRESSL_BY

concatenation
   TCAT
   XCAT
   YCAT
   ZCAT
   addition of strings

confidence interval, plotting
    see error_bar_demo script

conformability

CONPRE

CONPST

CONSET
    alternative syntax
    pplus command

constant arrays

context
   definition
   setting the

CONTOUR
   /AXES
   /COLOR
   /D
   /FILL
   /FRAME
   /GRATICULE
   /HGRATICULE,/VGRATICULE
   /HLIMITS
   /I /J /K /L
   /KEY
   /LEVELS
   /LEVELS options
   /LINE
   /MODULO
   /NOAXIS
   /NOKEY
   /NOLABELS
   /OVERLAY
   /PALETTE
   /PATTERN
   /PEN
   /SIGDIG
   /SIZE
   /SPACING
   /TRANSPOSE
   /VLIMITS
   /X/Y/Z/T
   color of contours
   controlling labels
   curvilinear version
   customizing CONTOUR plots
   dash controls
   demo script
   examples
   extrema, annotating
   label controls
   options
   pplus controls
   settings
   spline_tension

controlling color key

converting units

convolution functions

coordinates
   curvilinear coordinate data
   in NetCDF file
   interpolation
   precision
   pseudo-variables
   RETURN= start,end coord
   SHOW GRID /W/Y/Z/T
   spacing, NetCDF
   underlying grid

correlation
   i n variance script

COS function

creating postscript

cross section
   along an x-y track
   using SAMPLEXY_CLOSEST
   using SAMPLEXY_CURV

cross-hatching
   PATTERN

curl

curly brackets

CURV_TO_RECT function

CURV-TO-RECT-MAP function

curvilinear coordinates
   curvilinear coordinate data
   gridded data
   plot commands
   plot with /MODULO
   regridding to curvilinear
   regridding to rectilinear
   scripts for

Return to top

D

daily data

dashed lines

data

ASCII
   CANCEL DATA_SET
   data set
   editing
   examples
   EZ
   general discussion
   label
   locating
   MC: multi CDF
   multi CDF, creating
   NetCDF, using
   NetCDF, writing
   save and restore
   SET DATA
   SHOW DATA
   STATISTICS
   TMAP-formatted

DATE1900 function

dates
   axis labels
   datestring script
   DAYS1900 function
   DAYS1900TOYMDHMS function
   for modulo time axis
   format for
   i n ASCII files
   in external functions
   in NetCDF file
   in REPEAT loops
   MODE CALENDAR
   SAMPLET_DATE function
SESSION_DATE
SESSION_TIME
TAX_DATESTRING function
TAX_DAYFRAC function
   TAX_JDAY function
   TAX_MONTH function
   TAX_UNITS function
   TAX_YEAR function
   TAX_YEARFRAC function

DAYS1900 function

DAYS1900TOYMDHMS function

DDB transformation
   backward derivative

DDC transformation
   centered derivative

DDF transformation
   forward derivative

debugging
   complex expressions
   go tools
   SET MODE DIAGNOSTIC
   SET MODE IGNORE_ERROR

DEFINE

   DEFINE ALIAS

   DEFINE AXIS
      /BOUNDS
      /DEPTH
      /EDGES
      /FILE
      /FROM_DATA
      /MODULO
      /NAME
      /NPOINTS
      /T0
      /UNITS

   redefining an axis

   DEFINE GRID
      /FILE
      /LIKE
      /X/Y/Z/T

   DEFINE REGION
      /DEFAULT
      /DI/DJ/DK/DL
      /DX/DY/DZ/DT
      /I/J/K/L
      /X/Y/Z/T

   DEFINE SYMBOL

   DEFINE VARIABLE
      /BAD=
      /DATASET
      /QUIET
      /UNITS
User-defined variables

   DEFINE VIEWPORT
      /AXES
      /TEXT
      /XLIMITS
      /YLIMITS
      special symbols for viewports

definite integral
   @DIN transformation

degrees
   axis style (degrees lon and lat)
   label deg-min

delimited data files
   reading
   SET DATA/FORM=DELIMITED

delta function

delta notation; LO:HI:DELTA

demo scripts

density
   RHO_UN function
   ZAXREPLACE function

depth
   DEFINE AXIS/DEPTH
   go scripts
   SET AXIS/DEPTH
   SET MODE DEPTH_LABEL
   specifying ranges

derivative
   backward @DDB
   centered @DDC
   forward @DDF
   transformations

descriptor file
   definition
   example
   formatting notes
   locating
   syntax
   TMAP-formatted data
   tools for creating

DIAGNOSTIC mode

digitize

digits

dimensions
   multi-dimensional expression
   NetCDF

direct access
   Fortran files

divergence

DNCASE function

DODS (OPeNDAP)
   .dodsrc file
   accessing remote data
   caching
   for reading HDF
   initialization file
   locating data
   password access
   proxy servers
   security
   sharing data
TEST_OPENDAP function, Test a URL

drifter data

dynamic axis

dynamic grid
   definition
   SHOW GRID/DYNAMIC

dynamic height

Return to top

E

ECHO

ELEMENT_INDEX

ELEMENT_INDEX_STR

ELSE
   conditional execution
   masking
   ELIF
   ENDIF

embed point data in axis

embedded expressions
   immediate mode
   with symbols

empirical orthogonal functions
    eigenfunctions
    EOF_SPACE
    EOF_STAT
EOF_TFUNC
time amplitude fcns

endian

environment
   computing

environment variables
   list of Ferret related
   listing with Fenv

EOF functions
   eigenfunctions
   EOF_SPACE
   EOF_STAT
   EOF_TFUNC
   time amplitude fcns

error bars
   error_bar_demo script

errors
   generating messages
   FER_LAST_ERROR symbol
   insufficient memory
   MODE IGNORE_ERROR
   request exceeds memory setting
   syntax for generating

escape
   special characters in commands

event mask
   EVNT transformation

exclamation mark syntax

EXIT
   /COMMAND_FILE
   /CYCLE
   /LOOP
   /PROGRAM
   /PROMPT
   /SCRIPT
   QUIT

EXP function

export graphics
   gif files
   gif, batch mode
   postscript files
   postscript, batch mode

expression
   algebraic
   CANCEL EXPRESSION
   definition
   SET default context
   SHOW EXPRESSION

External Functions
   axis inheritance
   compute subroutine
   custom axes

   ef utility functions
      ef_bail_out
      ef_get_arg_info
      ef_get_arg_ss_extremes
      ef_get_arg_string
      ef_get_arg_subscripts
      ef_get_axis_calendar
      ef_get_axis_dates
      ef_get_axis_info
      ef_get_bad_flags
      ef_get_box_limits
      ef_get_box_size
      ef_get_coordinates
      ef_get_desc
      ef_get_one_arg_string
      ef_get_one_val
      ef_get_res_subscripts
      ef_get_string_arg_element
      ef_get_string_arg_element_len
      ef_get_string_arg_max_len
      ef_set_arg_desc
      ef_set_arg_name
      ef_set_arg_type
      ef_set_arg_unit
      ef_set_axis_extend
      ef_set_axis_influence
      ef_set_axis_inheritance
      ef_set_axis_limits
      ef_set_axis_reduction
      ef_set_custom_axis
      ef_set_num_args
      ef_set_num_work_arrays
      ef_set_piecemeal_ok
      ef_set_work_array_dims
      EF_Util.cmn
      ef_version_test

   example function
   getting EF example code
   getting started, writing
   inheriting axes
   init subroutine
   list of included functions
   loop indices
   reduced axes
   result_limits
   string arguments
   structure of EF
   utility functions
   working storage
   writing your own

extrema
   FINDHI function
   FINDLO function
   transformations @MAX, @MIN

EZ data
   definition
   FILE command
   missing data markers
   reading ASCII files
   SET DATA/EZ

Return to top

F

Faddpath

FAV transformation
   averaging filler

Fdata

Fdescr

Fenv

FER_DATA

FER_DESCR

FER_DIR

FER_DSETS

FER_GO

FER_GRIDS

FER_PALETTE

Ferret Home Page

ferret_paths

FER_LAST_ERROR

FERRET_MEMORY

FERRET_VERSION

FFT functions
   FFTA (Amplitude)
   FFTP (Phase)
   FFT_IM (Imaginary)
   FFT_RE (Real)
   FFT_INVERSE

Fgo

Fgrids

FILE
   alias for SET DATA/EZ

files
   ASCII
   ASCII "delimited"
   binary
   byte-swapped
   delimited (spreadsheet)
   DODS
   L IST
   mixed types
   NetCDF formatted
   reading, demo
   real*8
   SET DATA
   stream
   supported stream types
   TMAP-formatted

FILL
   CONTOUR/FILL
   curvilinear version of

fill value
   file creation
   on output to NetCDF

fill values
   and missing values

filler (missing value)
   @FAV averaging filler
   @FLN linear interpolation
   @FNR nearest neighbor filler

FILLPOL polygon command

filtering
   Lanczos bandpass
   lowpass
   transformations
   with CONVOLVE functions

FINDHI function

FINDLO function

flag (missing value)

FLN transformation
   linear interpolation filler

flow control (scripts)
   ELIF
   IF
   IF-THEN-ELSE
   SET MODE IGNORE_ERROR

flowline
   VECTOR/FLOW

FNR transformation
   nearest neighbor filler

font
   Ferret controls
   PPLUS commands
   PPLUS fonts
   pplus symbol fonts

format
   data sets
   Ferret
   HDF
   LIST/FORMAT=
   MODE ASCII_FONT
MODE LATIT_LABEL
   MODE LONG_LABEL
   NetCDF data format
   SET DATA/FORMAT
   SET LIST/FORMAT
   standardized data
   TMAP data format
   TMAP format, defined

formatting
   LIST/FORMAT
   LIST/HEADING
   numerical output
   plot axes
   plots

forward derivative
   @DDF transformation

Fourier transforms
   FFT_INVERSE function
   FFTA function
   FFTP function

Fpalette

Fprint
   Unix command
   Windows systems

Fpurge
Clean up files that Ferret creates

FRAME
   /FILE=filename
   /FORMAT=format
   /FORMAT=GIF
   /FORMAT=HDF
   movies in GIF format
   PLOT/FRAME

Fsort
Sort unix files Ferret creates

function
   grid-changing
   list of functions
   string functions

Return to top

G

geographic scripts

getting point data into Ferret

GIF image
   creating gif images
   FRAME/FORMAT=GIF
   -gif command line switch

GKS
   color map
   graphic metafile
   line bundles
   MODE METAFILE
   MODE SEGMENTS

gksm2ps

GLOSSARY

GO
   /HELP
   arguments
   demonstration files
   file, definition
   files
   files, running
LAST_GO_FILE
   quoted arguments
   tools, included with Ferret
   Unix file naming
   writing GO tools

graphics
   /SET_UP
   hard copy
   memory
   MODE METAFILE
   output controls
   viewport

graticule
   CONTOUR /GRAT
   overlay on plot
   PLOT/GRAT
   POLYGON/GRAT
   SET MODE GRATICULE
   SHADE/GRAT

grave accent
   embedded expressions
   order of precedence

GREGORIAN calendar

grid
   box size
   conformable
   default
   DEFINE AXIS
   DEFINE GRID
   Defining
   definition
   dynamic
   dynamic, definition
   grid box
   grid file
   of expressions
   of pseudo-variables
   regridding
   RESHAPE function
   RETURN=GRID name
   SET GRID
   staggered
   grid-changing functions
   gridded data sampled at points

gridding scattered data
   defining grid from data
   objective analysis
   SCAT2GRID_BIN_XYT
   SCAT2GRID_NBIN_XYT
   SCAT2GRIDGAUSS_XY function
   SCAT2GRIDGAUSS_XZ function
   SCAT2GRIDGAUSS_YZ function
   SCAT2GRIDLAPLACE_XY function
   SCAT2GRIDLAPLACE_XZ function
   SCAT2GRIDLAPLACE_YZ function

gridfile
   searching
   UD and DU

GT
   locating files

gui
   command line switch

Return to top

H

Hanning smoother
   @SHN transformation

hard copy
   creating gif images
   Fprint, postscript files
   MODE metafile

HDF
   creating, single image
   movie making
   reading, via DODS
   SET MOVIE

help
   HELP
   Web-based
   within Ferret

histograms
    histogram script
    histogram-based color levels

HLIMITS
   plot qualifier
   and modulo operations

home page

hyperslabs
   NetCDF

Return to top

I

IF
   conditional execution
   masking with strings

IGNORE0 function

images, GIF

immediate mode
   BAD=
   embedded expressions
   formatting output of
   mathematical expressions
   PRECISION=
   RETURN=

indefinite integral
   @IIN transformation

indices
   RETURN= start,end index

inheritance
   of axes

initialization file

insufficient memory

INT function

integral
   definite
   indefinite
   transformations

integration
   @DIN definite integral
   @IIN indefinite integral
   over irregular regions

interpolation
   @ITP transformation
   MODE INTERPOLATE
   see also "regridding"

IS_ELEMENT_OF

IS_ELEMENT_OF_STR

isopycnal
   ZAXREPLACE function

isosurface
   @LOC transformation
   example

ITP
   interpolation

Return to top

J

journal file
   GO files
   log of Ferret commands
   MODE JOURNAL
   naming
   -nojnl startup
   writing

JULIAN calendar

Return to top

K

key
annotating with data min,max
   contour and fill plots
   FILL/KEY
   for PLOT/VS
   positioning with PPL commands
   SHADE/KEY
   use WHERE to position
   on VECTOR plots

KEYMARK alias

keywords, reserved

Return to top

L

LABEL command
   /NOUSER
   positioning with mouse
   see also "labels"

labels
   adding
   axis
   color controls
   contour line
   customizing the text
   Ferret controls
   finding width of
   fonts
   LABWID function
   long labels
   MODE ASCII_FONT
   MODE CALENDAR
   MODE DEPTH_LABEL
   MODE LABELS
   MODE LATIT_LABEL
   MODE LOGO
   MODE LONG LABEL
   movable labels
   multi-line label demo
   plot labels
   positioning with mouse
   PPLUS commands
   removing
   with pointing arrow

LABWID
   function, width of label

Lanczos filter

land mass
   filled land fland.jnl
   outline land.jnl

latititude
   axis formatting
   COSINE(latitude) correction
   region, specifying

layer
   Z axis in layers

layout
   axes
   controlling white space
   customizing labels
   go tools for
   metafile translation
   plot layout controls

least squares
   regression scripts

LET

levels, contour
   general discussion
   histogram-based
   open-ended
   saving the settings
   variance-based

limits
   Ferret program limits

line
   adding contour lines
   connecting plotted points
   CONTOUR/LINE
   hard copy
LINECOLORS mode
   line styles
   line styles, GO tools
   overlaying contours
   PLOT/LINE/COLOR/THICK
   POLYGON/LINE
   thickness

LINE
   pplus command

linear interpolation filler
   @FLN transformation

LIST
   /APPEND
   /BOUNDS
   /CLOBBER
   /D
   /EDGES
   /FILE
   /FORMAT
   /HEAD
   /HEADING=ENHANCED
   /I /J /K /L
   /ILIMITS /JLIMITS /KLIMITS /LLIMITS
   /KEEP_AXISNAMES
   /NOHEAD
   /ORDER
   /PRECISION
   /QUIET
   /RIGID
   /SINGLY
   /TITLE="title string"
   /WIDTH=
   /X /Y /Z /T
   /XLIMITS /YLIMITS /ZLIMITS /TLIMITS
   LIST ALINE
   LIST SHAKEY
   LIST SHASET

lists of constants

little-endian

LN function

LOAD
   /D
   /I/J/K/L
   /NAME
   /PERMANENT
   /TEMPORARY
   /X/Y/Z/T

LOC transformation
   location of

local extrema
   FINDHI function
   FINDLO function

location transformation
   @LOC

LOG function

log plot
   2-D plots
   demo script
   PLOT/VLOG/HLOG

logarithmic functions
   LN and LOG

Logical operators
   AND, OR, ...
   with strings

logo

long_name
   NetCDF variable attributes

longitude
   region, specifying

loop

low pass filter

LSL_LOWPASS function

Return to top

M

make_des

map projections
   curviliear coordinate plots
   demo script
   overlays on
   scripts
   using scripts

maps
   basemap script
   ETOPO data sets
   land script
   overlays using GO tools

masking
   IF-THEN-ELSE logic

mathematical expressions, immediate mode
   BAD=
   PRECISION=
   RETURN=

matrix notation

maximum
   @MAX transformation
   FINDHI function
   local mamima
   MAX function

MC data sets
   creating
   definition
   tools for creating

memory
   cache, default size
   CANCEL MEMORY
   insufficient memory
   large calculations
   loading expressions into
   management
   -memsize switch
   NetCDF
   request exceeds memory setting
   SET MEMORY
   SET MODE DESPERATE
   SET MODE SEGMENTS
   SHOW MEMORY

MESSAGE
   /CONTINUE
   /ERROR
   /JOURNAL
   /QUIET
   alias PAUSE

metafile
   hard copy
   MODE METAFILE
   naming, automatic
   on Windows systems
   specifying a name
   translation

minimum
   @MIN regridding
   @MIN transformation
   bullseye.jnl script
   FINDLO function
   local minima
   MIN function

MINUTES24 function

MISSING function

missing value flag
   get flag
   setting message
   setting values

MOD function

MODE
   mode: Ferret state
   MODE ASCII_FONT
   MODE CALENDAR
   MODE DEPTH_LABEL
   MODE DESPERATE
   MODE DIAGNOSTIC
   MODE IGNORE_ERROR
   MODE INTERPOLATE
   MODE JOURNAL
   MODE LABELS
   MODE LATIT_LABEL
   MODE LINECOLORS
   MODE LONG_LABEL
   MODE METAFILE
   MODE NLEVELS
   MODE NODATA_LAB
   MODE PPLLIST
   MODE REFRESH
   MODE SEGMENTS
   MODE STUPID
   MODE UPCASE_OUTPUT
   MODE VERIFY
   MODE WAIT
   SET MODE
   SHOW MODE

MODMAX

MODMIN

MODNGD

MODSUM

modulo
   @mod transformation
   attribute, NetCDF
   axis
   axis, DEFINE
   axis, definition
   length, finding
   MOD function
   regridding
   regridding, definition
   subspan length
   subspan modulo axis
   modulo regridding statistics
   MODMIN
   MODSUM
   MODVAR

month

monthly axis
   climatological
   creating

mouse
   WHERE command to define position

movies
   animations
   creating from gifs
   FRAME
   HDF, creating
   set movie
   viewing
   whirlgif/ outside tools for
   MPEG

multi-file data sets
   creating
   definition

multiple axis plots

Return to top

N

naming
   Coordinate Axes, /KEEP_AXISNAMES on SAVE
   file version numbers
   of external functions
   Unix file names
   variables, DEFINE VARIABLE
   variables, in NetCDF files
   variables, renaming

NaN
   in NetCDF files

national boundaries
   land.jnl
   land_detailed.jnl

NBD transformation
   number of bad points

nc2mc

ncdump

creating cdl file
   editing .cdf file
   examples

ncgen
   example
   utility

NCO function

NCO_ATTR function

nearest neighbor filler
   @FNR transformation

NetCDF
   accessing data with USE
   append slab to
   append time steps
   axis attributes
   axis definition
   bounds attribute
   case sensitive names
   CDL data initialization
   CDL files
   child_axis
   converting to
   coordinates
   data set title
   definition
   dimensions
   disordered coordinates
   editing files
   editing attributes
   global attributes
   grid_definition
   hyperslabs
   KEEP_AXISNAMES on SAVE
   LIST/FORMAT=CDF
   locating
   long_name
   missing values in
   missing values, output
   modulo axes
   multi-file data sets
   multi-file, tools
   NaN in
   ncatted
   NCO operators
   parent grid
   permuted axes, /ORDER qualifier
   permuted axis ordering
   RETURN=dsettitle
   reverse-ordered coordinates
   SAVE
   slab_max_index
   slab_min_index
   special axis interpretations
   staggered grids
   strides
   string data
   USE
   utilities
   variable attributes
   variables
   variable type, when writing
   variables, invalid names
   writing to

NGD
   regridding transformation
   transformation

NLEVELS

NOLEAP calendar

non-gridded data
   collections
   curvilinear
   point data
   polygonal
   time series
   vertical profiles

normal axis

notation
   @ notation

NRST
   regridding transformation

number of bad points
   @NBD transformation

number of good points
   @NGD transformation

Return to top

O

objective analysis, See also entries under gridding scattered data
   demo script

offset
   NetCDF attribute
   RETURN=NC_OFF
   RETURN=USER_OFF
   SET VARIABLE/OFFSET=

OPenDAP
   .dodsrc file
   accessing remote data
   caching
   for reading HDF
   initialization file
   locating data
   password access
   proxy servers
   security
   sharing data
   TEST_OPENDAP function, Test a URL

operator
   definition
   list of

order of operations
   string substitution

ORDER qualifier
   for LIST
   for SET DATA/FORMAT=CDF

output
   gif files
   gif, batch mode
   postscript files
   postscript, batch mode

overlay
   CONTOUR/OVERLAY
   overlay tools (scripts)
   PLOT/OVERLAY
   POLYGON/OVERLAY
   SHADE/OVERLAY
   VECTOR/OVERLAY
   WIRE/OVERLAY

Return to top

P

packed data
   attribute for packing data
   setting scale/offset for var in a netCDF file
   NetCDF output
   RETURN=NC_SCALE
   RETURN=NC_OFFSET

palette
   by_level
   by_percent
   by_value
   CONTOUR/PALETTE
   creating
   directory
   files in $FER_PALETTE
   locating files: Fpalette
   PALETTE command
   POLYGON/PALETTE
   restoring default
   scripts
   SHADE/PALETTE
   testing

parent grid
   NetCDF

Parzen smoother
   @SPZ transformation

password access to URLs

pattern
   CONTOUR/PATTERN=
   demo script
   PATTERN command
   POLYGON/PATTERN=
   SHADE/PATTERN=

pause
   MESSAGE

PEN
   PPLUS commands

performance (See also entries under memory)
   initializing NetCDF file

permutation
   of axes on input

PLOT
   /AXES
   /COLOR
   /D
   /DASH
   /FRAME
   /GRATICULE
   /HGRATICULE,/HGRATICULE
   /HLIMITS
   /HLOG
   /I/J/K/L
   /LINE
   /NOKEY
   /NOLABELS
   /NOYADJUST
   /OVERLAY    /SET_UP
   /SIZE=
   /STEP
   /SYMBOL
   /THICKNESS
   /TITLE
   /TRANSPOSE
   /VLIMITS
   /VLOG
   /VS
   /X/Y/Z/T
   lines, controlling color and thickness
   log plots
   symbols, controlling size and color

plot name
   batch, metafile output
   batch, postscript output
   PLTNME pplus command
   SET MODE METAFILE:name

plot output
   gif files
   gif, batch mode
   postscript files
   postscript, batch mode

PLOTUV

PLTNME
   PPLUS command

point data structure

POLYGON
   /AXES
   /COLOR
   /COORD_AX
   /D
   /FILL
   /FRAME
   /HGRATICULE,/VGRATICULE
   /HLIMITS
   /HLOG
   /KEY
   /LEVELS
   /LINE
   /NOKEY
   /NOLABELS
   /OVERLAY
   /SET_UP
   /THICKNESS
   /TITLE
   /TRANSPOSE
   /VLIMITS
   /VLOG
   log axes
   scripts

polygon vectors
   poly_vec_demo.jnl

portrait
   Fprint option
   go scripts
   metafile translation

postscript
   ferret -batch option
   Fprint command
   gksm2ps command
   MODE METAFILE
   on Windows systems

potential temperature
   THETA_FO function

PPLUS
   /RESET
   axis commands
   command format
   Ferret Enhancements Guide
   for plot customization
   labels
   MODE ASCII_FONT
   special symbols
   string editing tools
   syntax
   time axes
   Users Guide

precision
   coordinates
   in embedded expressions
   LIST/PREC=
   of floating-point variables

printing
   hard copy

profile collection structure

profile data into Ferret

Proleptic-Gregorian calendar

projection
   curvilinear coordinates
   map projections
   map projections & curvilinear coordinates
   mp_mask
   overlays
   polar stereographic
   sigma coordinates
   x_page, y_page

pseudo-variable
   definition
   in NetCDF files
   list of

Return to top

Q

qualifiers
   definition
   string substitution

QUERY
   in GO tools

QUIET

QUIT
   alias for EXIT

quotes
   "invalid" variable names
   /VARIABLES="var"
   defining title
   embedded in strings
   for missing arguments
   grave accents
   string arguments

Return to top

R

RANDN function

random number generator
   RANDU, RANDN functions

reading data files
   ASCII delimited files
   ASCII files
   direct access
   FORTRAN-structured
   NetCDF
   unformatted data

reading scattered data

record axis

record structure
   file

RECT_TO_CURV function

rectangle
   draw, on a plot

redirection
   pipe a script into Ferret

Reduced axes

region
   CANCEL
   DEFINE
   definition
   named
   pre-defined
   save and restore
   SET
   SHOW
   specifying with @
   region (irregular)

r egression scripts

regridding
   @ASN
   @AVE
   @LIN
   @MAX
   @MIN
   @MOD modulo regridding transformation
   @MODMAX
   @MODMIN
   @MODNGD
   @MODSUM
   @MODVAR
   @NGD
   @NRST
   @SUM
   @VAR
   @XACT
   curvilinear data
   definition
   demo script
   modulo regridding

request exceeds memory setting

relative version
   GO
   numbers
   Unix file naming

Renaming variables

REPEAT
   /ANIMATE
   /I/J/K/L
   /LOOP=
   /NAME
   /RANGE
   /X/Y/Z/T
   exiting from loops
   in making animations

reserved keywords

reserved names

RESHAPE
   function

RETURN=
   BAD flag
   CALENDAR
   coordinates of result
   data set information
   DSETNUM
   embedded expressions
   GRID name
   IAXIS (also JKL)
   IEND (also JKL)
   ISIZE (also JKL)
   ISTART (also JKL)
   IUNITS (also JKL)
   NC_OFFSET
   NC_SCALE
   SHAPE
   SIZE
   T0 (time origin)
   TITLE of variable
   TMOD
   UNITS of variable
   USER_OFFSET
   USER_SCALE
   XEND (also YZT)
   XMOD
   XSTART (also YZT)

reverse axis
   reverse on input
   SET AXIS/DEPTH

RGB
   color postscript

RGB mapping
   by level
   by value
   percent

RHO_UN function

rivers
   land_detailed.jnl

RSUM transformation
   running unweighted sum
@RSUM transformation

Return to top

S

SAMPLEI function

SAMPLEIJ function

SAMPLEJ function

SAMPLEK function

SAMPLEL function

SAMPLET_DATE function
    defined
    examples

SAMPLEXY function
   function definition
   further examples

SAMPLEXY_CLOSEST

SAMPLEXY_CURV

SAMPLEXY_CURV_AVG

SAMPLEXY_CURV_NRST

sampling (See also above entries)
   of string arrays
   scattered sampling

scripts

SAVE (alias for LIST/FORMAT=cdf)
   attribute control
   history attribute
   /KEEP_AXISNAMES on SAVE
   notes
   packed data
   see LIST
   upcase_output

SAY
   alias for MESSAGE/CONTINUE
   examples

SBN transformation
   binomial

SBX transformation
   boxcar

scale
attribute for packing data
NetCDF attribute
RETURN=NC_SCALE
   scale_factor in NetCDF files
  setting scale/offset for var in a netCDF file

Scattered data, gridding
   defining grid from data
   objective analysis
   SCAT2GRID_BIN_XYT
   SCAT2GRID_NBIN_XYT
   SCAT2GRIDGAUSS_XY function
   SCAT2GRIDGAUSS_XZ function
   SCAT2GRIDGAUSS_YZ function
   SCAT2GRIDLAPLACE_XY function
   SCAT2GRIDLAPLACE_XZ function
   SCAT2GRIDLAPLACE_YZ function
   SET VARIABLE/SCALE=

scatter plots

scattered sampling

script
   -script command-line mode

scripts
   GO files
   writing

seasonal averages

section, cross
   along an x-y track
   using SAMPLEXY_CLOSEST
   using SAMPLEXY_CURV
   see also SAMPLEXY_CURV_AVG
   see also SAMPLEXY_CURV_NRST

segments
   MODE SEGMENTS

server startup mode

SET
   SET ATTRIBUTE
SET ATTRIBUTE/LIKE
SET ATTRIBUTE/OUTPUT
SET ATTRIBUTE/TYPE

   SET AXIS
      /CALENDAR=
      /MODULO
      /OFFSET
      /STRIDE
      /T0=
      /UNITS=

   SET DATA
      /EZ
      /EZ/COLUMNS
      /FORMAT
      /FORMAT=CDF
      /FORMAT=DELIMITED
      /FORMAT=FORTRAN format
      /FORMAT=FREE
      /FORMAT=STREAM
      /GRID
      /ORDER
      /REGULART
      /RESTORE
      /SAVE
      /SKIP
      /SWAP
      /TITLE
      /TYPE
      /TYPE for ASCII file
      /VARIABLES
      ASCII data examples
      data set basics
      Fortran binary data
      NetCDF files
      stream files

   SET EXPRESSION

   SET GRID
      /RESTORE
      /SAVE
      and curvilinear data

   SET LIST
      /APPEND
      /FILE
      /FORMAT
      /HEAD
      /PRECISION

   SET MEMORY
   SET MODE
      /LAST
      ASCII_FONT
      CALENDAR
      DEPTH_LABEL
      DESPERATE
      DIAGNOSTIC
      GRATICULE
      IGNORE_ERROR
      INTERPOLATE
      JOURNAL
      LABELS
      LATIT_LABEL
      LOGO
      LONG_LABEL
      METAFILE
      NLEVELS
      REFRESH
      SEGMENTS
      STUPID
      VERIFY
      WAIT

   SET MOVIE
      /COMPRESS
      /FILE
      /LASER
      /START

   SET REGION
      /DI/DJ/DK/DL
      /DX/DY/DZ/DY
      /I/J/K/L
      /X/Y/Z/T

   SET VARIABLE
      /BAD
      /GRID
      /NAME
      /OFFSET
      /OUTTYPE
      /TITLE
      /UNITS

   SET VIEWPORT

   SET WINDOW
      /ASPECT
      /CLEAR
      /LOCATION
      /NEW
      /SIZE
      /TITLE

settings
   PPLUS and Ferret settings

setup
   /SET_UP
   setting up to run Ferret

SHADE
   /AXES
   /D
   /FRAME
   /GRATICULE
   /HGRATICULE,/VGRATICULE
   /HLIMITS
   /I/J/K/L
   /KEY
   /LEVELS
   /LEVELS options
   /MODULO
   /NOAXIS
   /NOKEY
   /NOLABELS
   /OVERLAY
   /PALETTE
   /SET
   /TITLE
   /TRANSPOSE
   /VLIMITS
   /X/Y/Z/T
   curvilinear version

SHAKEY
   CONTOUR/KEY
   example
   POLYGON/KEY
   pplus command syntax
   SHADE/KEY

shape (of variable)

SHASET
    pplus command
    pplus SHASET PROTECT
    pplus SHASET RESET

SHF transformation
   shift data
   for string arrays

shift transformation
   @SHF
    for string arrays

SHN transformation
   Hanning smoother

SHOW
   /ALL

   SHOW ALIAS

   SHOW ATTRIBUTE

   SHOW AXIS
      /ALL
      /I/J/K/L/X/Y/Z/T

   SHOW COMMANDS

   SHOW DATA
      /ATTRIBUTES
      /BRIEF
      /FILES
      /FULL
      /VARIABLES
      /XML

   SHOW EXPRESSION

   SHOW FUNCTION

   SHOW GRID
      /ALL
      /DYNAMIC
      /I/J/K/L
      /X/Y/Z/T
      /XML

   SHOW LIST
      /ALL

   SHOW MEMORY
      /ALL
      /FREE
      /PERMANENT
      /TEMPORARY

   SHOW MODE
      /ALL

   SHOW MOVIE
      /ALL

   SHOW QUERIES

   SHOW REGION

   SHOW SYMBOL

   SHOW TRANSFORM
      /ALL

   SHOW VARIABLES
      /ALL
      /DATA
      /DIAGNOSTIC
      /USER

   SHOW VIEWPORT
      /ALL

   SHOW WINDOWS
      /ALL

sigma coordinate data
   definition
   ZAXREPLACE function

SIN function

size
   RETURN= # points, variable

slab_max_index
   NetCDF

slab_min_index
   NetCDF

smoothing
   contour lines
   transformations, general
   transformations, smoothing
   with CONVOLVE functions

sorting
   SORTI function
   SORTJ function
   SORTK function
   SORTL function
   SAMPLEI function
   SAMPLEIJ function
   SAMPLEJ function
   SAMPLEK function
   SAMPLEL function

SPAWN
   return a string variable
   execute unix commands

special axis interpretations
    NetCDF

special characters
   escaping, in commands

special data

SPZ transformation
   Parzen

square brackets
   for variable context
   in expressions
   in function arguments

square root

staggered grids
   NetCDF

STANDARD calendar

standard deviation

startup file

state (Ferret state)
   in go tools

SET GRID

SET MODE

statistical analysis
   demo script
   GO tools for

statistics
   regridding

STATISTICS command
   /D
   /I/J/K/L
   /X/Y/Z/T
   /BRIEF

stick plot
   PLOTUV command
   stick_vectors script

STRCMP function

stream files

stream format data

streamline
   relation to FLOWLINE

strides
   "native"
   applied to all axes
   netCDF discussion
   offset

string variables
   arrays of
   changing case
   comparing strings
   concatenating
   converting to float
   from Unix commands
   functions for strings
   LABWID function
   length, getting
   logical operators
   NetCDF I/O
   order of precedence
   reading from ascii files
   regridding arrays

sampling functions

STRCAT function

STRFLOAT function

STRINDEX function

STRLEN function

STRRINDEX function

SUBSTRING function

strings
   arguments to go tools
   arguments, containing quotes
   editing, PPLUS functions
   function arguments
   IF-THEN-ELSE

structured files
   FORTRAN structured

subroutines (scripts)

subsampling to points

subsampling to profiles

subscript

subspan modulo
   axes
   comparing datasets
   modulo length

SUBSTRING function
substrings
   STRINDEX function
   STRRINDEX function

SUM
   regridding transformation
   unweighted sum

SWL transformation
   Welch

symbol: Ferret string-variable symbols
   CANCEL
   commands for
   DEFINE
   editing
   SHOW SYMBOLS

symbols, special
   CLOCK_SECS
   CURRENT_DATE
   CURRENT_TIME
   DELTA_CPU
   FER_LAST_ERROR
   FERRET_MEMORY
   FERRET_VERSION
   FER_LAST_ERROR
   PPLUS symbols
   SESSION_DATE
   SESSION_TIME
   XPIXEL, YPIXEL

symbol: Plot-marks
   PLOT/SYMBOL=
   pplus symbol fonts
   script to show all plot symbols

syntax
   commands
   examples
   qualifiers
   region
   regridding
   transformation
   variables

Return to top

T

TAN function

TAUTO_COR function

TAX_DATESTRING function

TAX_DAYFRAC function

TAX_JDAY function

TAX_MONTH function

TAX_UNITS function

TAX_YEAR function

TAX_YEARFRAC function

Taylor diagrams
   script

TBOX

TBOXHI

TBOXLO

TCAT function

Tektronix
   MODE WAIT

text
   color controls
   fonts
   reading from ascii file
   SET MODE ASCII_FONT
   string variables
   style of plot labels
   symbol editing

THETA_FO function

three-dimensional plot
   WIRE

tic marks
   customizing
   default

time
   axis, discussion
   axis: MODE CALENDAR
   axis: NetCDF REGULART
   convert date to days
   convert days to ymdhms
   convert time string to minutes
   convert tstep to day
   convert tstep to day frac
   convert tstep to J day
   convert tstep to month
   convert tstep to string
   convert tstep to year
   convert tstep to year frac
   converting times for NetCDF files
   converting times to numbers
   non-Gregorian calendar
   output formatting
   overlaying symbols on time plot
   return time units
   RETURN= T0
   RETURN=TUNIT
   SESSION_TIME
   specifying time at T0
   specifying time region

time series
   locating files
   scripts for

time series analysis
   FFT_IM function
   FFT_RE function
   TAUTO_COR function

title
   CONTOUR/TITLE
   data set, RETURN
   data set, setting
   defining variable title
   NetCDF "title" attribute
   plot title
   PLOT/TITLE
   SET DATA/TITLE
   SET VAR/TITLE
   SHADE/TITLE
   VECTOR/TITLE
   WIRE/TITLE

TMAP-formatted file
   definition

tools
   Unix tools

transect
   scripts
   using SAMPLEXY
   using SAMPLEXY_CLOSEST
   using SAMPLEXY_CURV

transformation
   axis
   definition
   examples
   general information
   regridding
   SHOW

transformations, list of
   @AVE average
   @CDA closest distance above
   @CDB closest distance below
   @CIA closest index above
   @CIB closest index below
   @DDB backward derivative
   @DDC centered derivative
   @DDF forward derivative
   @DIN definite integral
   @FAV averaging filler
   @FLN linear interpolation filler
   @FNR nearest neighbor filler
   @IIN indefinite integral
   @LOC location of
   @MAX maximum value
   @MIN minimum value
   @NBD number of bad points
   @NGD number of good points
   @RSUM running unweighted sum
   @SBN binomial smoother
   @SBX boxcar smoother
   @SHF shift data
   @SHN Hanning smoother
   @SPZ Parzen smoother
   @SUM unweighted sum
   @SWL Welch smoother
   @VAR weighted variance
   @WEQ weighted equal

trend
   regression scripts

trigonometric functions
   SIN, COS, TAN, ASIN, ACOS, ATAN, ATAN2

TSEQUENCE function

TYPE
   datatype in ASCII files
   SET VAR/OUTTYPE= for netCDF output

Return to top

U

Udunits package

UNALIAS

unformatted files

units
   axis
   in transformations
   RETURN=UNIT (string)
   SET VARIABLE/UNITS

Unix
   command line
   environment variables
   setting up to run Ferret
   Unix tools

unmapped windows

unweighted sum
   @SUM transformation
   transformation @RSUM
   transformation @SUM

upper/lower case
   UPCASE function
   UPCASE_OUTPUT mode

USE
   SET DATA/FORMAT=CDF

USER

utilities
   NetCDF utilities
   Unix tools

Return to top

V

variable
   abstract expressions
   abstract variable, using
   CANCEL
   character
   conformable
   default
   DEFINE
   defining new variables
   file variables
   global
   local
   missing value flag
   missing values in user-defined
   names, DEFINE VARIABLE
   names, in NetCDF file
   NetCDF
   pseudo-
   SET
   SET DATA_SET/VARIABLE
   SHOW
   syntax
   user-defined

variance
   go tool
   transformation @VAR
variance-based color levels

VECTOR
   /ASPECT
   /AXES
   /COLOR
   /D
   /DENSITY
   /FLOWLINE
   /FRAME
   /GRATICULE
   /HGRATICULE,/VGRATICULE
   /HLIMITS
   /I/J/K/L
   /LENGTH
   /NOAXIS
   /NOKEY
   /NOLABELS
   /OVERLAY
   /PEN
   /SET_UP
   /TITLE
   /TRANSPOSE
   /VLIMITS
   /X/Y/Z/T
   /XSKIP
   /YSKIP
   as filled polygons
   curvilinear version
   key, positioning

vector plots
   as filled polygons
   demo script
   plot_vectors.jnl
   poly_vec_demo.jnl
   scattered
   scripts
   tick vectors

versions
   GO
   purging
   relative version numbers
   Unix file naming

vertical cross section
   along an x-y track

vertical profile
   example of reading file

vertical sections
   defining from profiles
   script
   using SAMPLEXY_CURV

viewport
   advanced usage
   CANCEL
   DEFINE
   demo script
   pre-defined
   SET
   SHOW
   special symbols for

Vis5D files
   WRITEV5D function

visualizing curvilinear coordinate data

visualizing Lagrangian data

visualizing point data

visualizing polygonal coordinate data

visualizing profile data

visualizing sigma coordinate data

VLIMITS

Return to top

W

wait
   MESSAGE

weighted equal
   @WEQ transformation

weighted variance
   @VAR

Welch smoother
   @SWL transformation

WEQ - weighted equal trans

WHERE

While loop
   see REPEAT

whirlgif
   for animations

white pen
   for labels
   for plot lines

window
   CANCEL
   SET
   SHOW
   size and shape
   test for open window

windowing
   transformations @MIN @MAX

WIRE
   /D
   /FRAME
   /I/J/K/L
   /NOLABEL
   /OVERLAY
   /SET_UP
   /TITLE
   /TRANSPOSE
   /VIEWPOINT
   /X/Y/Z/T
   /ZLIMITS
   /ZSCALE
   example

wire frame

world coordinate

WRITEV5D function

Return to top

X

X Data Slice

X windows
   setting up to run Ferret
   size and shape
   unmapped

XACT regridding

XAUTO_COR function

XBOX

XBOXHI

XBOXLO

XCAT

XML
   SHOW AXIS/XML
   SHOW DATA/XML
   SHOW GRID/XML

XPIXEL

XSEQUENCE function

X-Y plot
   PLOT

Return to top

Y

YBOXHI

YBOXLO

YCAT function

YPIXEL

YSEQUENCE function

Return to top

Z

ZAXREPLACE function

ZAXREPLACE_AVG function

ZAXREPLACE_BIN function

ZCAT function

ZSEQUENCE function

Portal

Sections

Personal tools

Document Actions

Index

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z