Program sfhistogram | Compute a histogram of integer- or float-valued input data.
[SYNOPSIS]
sfhistogram < in.rsf > out.rsf n1= o1= d1=
[COMMENTS]

The output grid is not centered on the bins; it marks their "left edge".
I.e., the first sample holds the number of values between o1 and o1+d1. 

February 2015 program of the month:
http://ahay.org/blog/2015/03/01/program-of-the-month-sfhistogram/

[PARAMETERS]
float   | d1 | = |   | 	histogram sampling 
int     | n1 | = |   | 	number of histogram samples 
float   | o1 | = |   | 	histogram origin 
[DIRECTORY]
system/generic
