gsl-histogram: invalid option -- '-' Usage: gsl-histogram [-u] xmin xmax [n] Computes a histogram of the data on stdin using n bins from xmin to xmax. If n is unspecified then bins of integer width are used. If -u is given, histogram is normalized so that sum of all bins is unity.

gsl-histogram: invalid option -- '-' Usage: gsl-histogram [-u] xmin xmax [n] Computes a histogram of the data on stdin using n bins from xmin to xmax. If n is unspecified then bins of integer width are used. If -u is given, histogram is normalized so that sum of all bins is unity.