?? uminus.m
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function ds=uminus(ds)
% Function takes the unitary minus of the traces of a seismic dataset
% Written by: E. R.: August 18, 2005
% Last updated:
if isstruct(ds) & strcmp(ds.type,'seismic')
ds.traces=-ds.traces;
else
error('Operator "-" is not defined for these arguments.')
end
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