Specify the column in the
data file from which the data labels are to be read.
This command is a synonym for SETGLOBAL PONGO_LABCOL.
Usage:
labcolumn
labcol
Parameters:
LABCOL = _CHAR (Read and Write)
The column number (counting
from 1), or the symbolic name of a column, from which the symbolic name for each data
point is read by the READF command. The value "0" means "do not read these data". []