Program sfnoise | Add random noise to the data.
[SYNOPSIS]
sfnoise < in.rsf > out.rsf seed=time(NULL) type=y var= range= mean=0 rep=n
[COMMENTS]

July 2011 program of the month:
http://ahay.org/blog/2011/07/03/program-of-the-month-sfnoise/

[PARAMETERS]
float   | mean | =0 |   | 	noise mean 
float   | range | = |   | 	noise range (default=1) 
bool    | rep | =n |  [y/n] | 	if y, replace data with noise 
int     | seed | =time(NULL) |   | 	
bool    | type | =y |  [y/n] | 	noise distribution, y: normal, n: uniform 
float   | var | = |   | 	noise variance 
[DIRECTORY]
system/generic
