Gather mean statistics for an input list of FITS images.

  
% list_imstats --help

Usage: list_imstats list.in  60 710 60 710 N
arg1 - Name of file with list of FITS images
arg2 - minimum column (X position) in pixels (must be integer) 
arg3 - maximum column (X position) in pixels (must be integer) 
arg4 - minimum row (Y position) in pixels (must be integer) 
arg5 - maximum row (Y position) in pixels (must be integer) 
arg6 - Run in debug/verbose mode (Y/N) 

SAMPLE RUN: 

% list_imstats list.BIAS 60 710 60 710 N  
     1377.6976         0.0466        30.3219     423801
     1377.8696         0.0450        29.3235     423801
     1377.9395         0.0450        29.2886     423801
     1377.9377         0.0456        29.6761     423801
     1377.8491         0.0469        30.4998     423801
     1377.8961         0.0451        29.3500     423801
     1378.0116         0.0450        29.3215     423801
Mean pixel value   = 1378.0116 
Mean error of mean = 0.0450 
Standard deviation = 29.3215 
Number of images   = 7 
Values written to file = list_imstats.out 

% cat list_imstats.out  
 1378.0116 0.0450 29.3215 7   (mean,me.sig,nims)