Program sfstcontrib | Contribution weighting using streaming attributes. 
[SYNOPSIS]
sfstcontrib < gath.rsf stack=stck.rsf weight=wght.rsf > outp.rsf eps=1.0f w0=0.0f
[PARAMETERS]
float   | eps | =1.0f |   | 	regularization parameter 
file    | stack | = |   | 	auxiliary input file name
float   | w0 | =0.0f |   | 	initial weight 
file    | weight | = |   | 	auxiliary output file name
[DIRECTORY]
user/fomels
