sum traces
command: SUM <trc-list>[ <lo-bound> <hi-bound>]
Sums all traces specified in <trc-list>. The result is displayed in a new created trace on top of the display. The sum trace is normalized by the number of input traces unless the "/nonorm" qualifier is specified.
parameters
- <trc-list> parameter type: trace list
List of traces to be summed.
- <lo-bound>, <hi-bound> parameter type: real
The summation trace is restricted to this time window. If no time window is entered the current display time window is used.
qualifiers
- /nonorm
If passed, the summation trace is the plain sum of the input traces and is not normalised by the number of input traces.
- /stddev
(undocumented)
- /phases
(undocumented)
examples
- sum all
- creates sum of all traces and appends result trace to the top of the display
- sum 1,3,5
- creates sum of listed traces
- sum _azimuth(0:180)
- sums all traces with an azimuth value between 0 and 180 degrees
