[SAC-HELP] "addstack" and "changestack" commands

[María Ramírez]

Dear SAC users,

we are currently using the SAC2000 software in order to plot different
seismograms inside one single figure by using the epicentral distances
(degrees) along the y-axis. For this, we made use of both "addstack" and
"changestack" commands inside the sss environment. We found that our
seismograms are being plotted with a changed polarity and also with a
different amplitudes. Does anyone knows how to plot them inside the same
plot by keeping the same polarity and using a sort of "normalized"
amplitude, so that everything scales to 1?

Any kind of comments are highly appreciated.

Thank you very much.

Best regards,
María
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