@spectrum graph issue

[ivory4]

I use band-pass filter to isolate high frequency and medium frequency from a series.
Then how can I draw spectral density of them in one graph?

[TomDoan]

I've attached a revised version of spectrum.src which allows you to save the computed spectrum (the 0 to pi part) using the option

SPECTRUM=series for spectrum.

You can use the @spectrum to generate both series, then use the same basic code as at the end of the spectrum procedure to graph the two on the same SCATTER instruction.

spectrum.src

(3.04 KiB) Downloaded 1211 times