SUEDIT - examine segy diskfiles and edit headers

suedit diskfile (open for possible header modification if writable)
suedit <diskfile (open read only)

The following commands are recognized:
number read in that trace and print nonzero header words
<CR> go to trace one step away (step is initially -1)
+ read in next trace (step is set to +1)
- read in previous trace (step is set to -1)
dN advance N traces (step is set to N)
% print some percentiles of the trace data
r print some ranks (rank[j] = jth smallest datum)
p [n1 [n2]] tab plot sample n1 to n2 on current trace
! key=val change a value in a field (e.g. ! tracr=101)
? print help file
q quit

NOTE: sample numbers are 1-based (first sample is 1).


Credits:
SEP: Einar Kjartansson, Shuki Ronen, Stew Levin
CWP: Jack K. Cohen

Trace header fields accessed: ns