How do I specify the color of plot symbols?
In Pyferret, line color may also be specified using an RGB setting. In addition, the argument to /THICKNESS may be any positive value.
yes? PLOT/COLOR=name/LINE/SYMBOL=m/THICKNESS=n my_expression
sets both the symbol and the line color. The /LINE qualifier also causes a line to be drawn. If /SYMBOL= is given without /LINE, then only the symbols are drawn.
yes? PLOT/COLOR=red/SYMBOL=4 SIN(X[X=0:6:.2])
Here is an example using PPL commands to specify two variables with different symbols and a line style key. This syntax does not allow us to choose the colors.
yes? plot/SET SIN(X[X=0:6:.2]), COS(X[X=0:6:.1])
yes? ppl line 1,4,3
yes? ppl line 2,6,3
yes? ppl plot