SUMAX - get trace by trace local/global maxima, minima, or absolute maximum

 sumax <stdin >stdout [optional parameters] 				

 Required parameters:							
	none								

 Optional parameters: 							
	output=ascii 		write ascii data to outpar		
				=binary for binary floats to stdout	
				=segy for SEGY traces to stdout		

	mode=maxmin		output both minima and maxima		
				=max maxima only			
				=min minima only			
				=abs absolute maxima only      		

	verbose=0 		writes global quantities to outpar	
				=1 trace number, values, sample location

	outpar=/dev/tty		output parameter file; contains output	
					from verbose			

 Examples: 								
 For global max and min values:  sumax < segy_data			
 For local and global max and min values:  sumax < segy_data verbose=1	
 To plot values specified by mode:					
    sumax < segy_data output=binary mode=modeval | xgraph n=npairs	
 To plot seismic data with the only values nonzero being those specified
 by mode=modeval:							
    sumax < segy_data output=segy mode=modeval | suxwigb		

 Note:	while traces are counted from 1, sample values are counted from 0.
	Also, if multiple min, max, or abs max values exist on a trace,	
       only the first one is captured.					

 See also: suxmax, supsmax						

 Credits:
	CWP : John Stockwell (total rewrite)
	based on an original program by:
	SEP: Shuki Ronen
	CWP: Jack K. Cohen

 Trace header fields accessed: ns