SUMIX - compute weighted moving average (trace MIX) on a panel of seismic data

sumix <stdin >sdout
mix=.6,1,1,1,.6 array of weights for weighted average


Note:
The number of values defined by mix=val1,val2,... determines the number
of traces to be averaged, the values determine the weights.

Examples:
sumix <stdin mix=.6,1,1,1,.6 >sdout (default) mix over 5 traces weights
sumix <stdin mix=1,1,1 >sdout simple 3 trace moving average


Author:
CWP: John Stockwell, Oct 1995

Trace header fields accessed: ns