NAME
gr_reduce - a GRToolbox module
DESCRIPTION
Reduce the number of points of a set by printing only each nth-point.
SYNOPSIS:
-[n h o v noc nof now skip f m c e i s l]
-help For help on all options.
Special Options:
-n int Print only each nth point. (Default : 1)
-last Print the last point of any set anyway.