SUTAPER - Taper the edge traces of a data panel to zero.      


 sutaper <stdin >stdout [optional parameters]                  

 Optional Parameters:                                          
 tr1=0         number of traces to be tapered at beg		
 tr2=tr1       number of traces to be tapered at end      	
 min=0.    	minimum amplitude factor of taper		
 tbeg=0    	length of taper (ms) at trace start		
 tend=0     	length of taper (ms) at trace end		
 taper=1       taper type                                      
                 =1 linear (default)                           
                 =2 sine                                       
                 =3 cosine                                     
                 =4 gaussian (+/-3.8)                          
                 =5 gaussian (+/-2.0)                          

 Notes:                                                        
   To eliminate the taper, choose tbeg=0. and tend=0. and tr1=0


 Credits:

	CWP: Chris, Jack

 Trace header fields accessed: ns
 
 Rewrite: Tagir Galikeev, October 2002