How to install Butterworth filter in EEGLAB plugin in Matlab?

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I see in the tutorials and papers that there is Butterworth high pass filter in EEGLab. However, I don't have it and cannot find it in EEGLAB extensions either. Any ideas how to get it?

Thanks!

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BossaNova On

I never came across butterworth filter option in eeglab (nor do I see one in my v2019.1 eeglab). Maybe they just added it or maybe there's some external plugin I don't know about, but personally I'd  just use Matlab functions for that. For example:

[b, a] = butter(order, cutoff/Fs, 'high');
data = filter(b, a, data);

See matlab's help for butter and for filter.