EXPND_BY_LEN and EXPND_BY_LEN_STR

Appendix A.

EXPND_BY_LEN and EXPND_BY_LEN_STR

EXPND_BY_LEN(var, len, nx) Returns a variable expanded by the lengths given in argument 2

EXPND_BY_LEN_STR (var, len, nx) Returns a string variable expanded by the lengths given in argument 2

The first argument VAR is a string. LEN and NX are numeric.

Example:

yes? let var = {8,-2,3}
yes? let lens = {3,4,2}

yes? list expnd_by_len(var,lens, `lens[i=@sum]`) !-> list expnd_by_len(var,lens, 9)
             VARIABLE : EXPND_BY_LEN(VAR,LENS, 9)
 SUBSET : 9 points (X)
 1 / 1: 8.000
 2 / 2: 8.000
 3 / 3: 8.000
 4 / 4: -2.000
 5 / 5: -2.000
 6 / 6: -2.000
 7 / 7: -2.000
 8 / 8: 3.000
 9 / 9: 3.000