Savitzky Golay Filter Java implementation there is a difference from python

[lixiuming1991]

When we use Savitzky Golay Filte to smooth data, we found that the result after Java processing is inconsistent with Python. Inconsistent intervals appear at the edges，so we checked the source code of both。When the mode selects constant, python does edge processing on the data, but Java does not.
Excuse me, will the code be updated in the future to keep it consistent?

[psambit9791]

@lixiuming1991

The interp mode has been implemented and will be available from version 3.0.0. Currently available in the master branch - use JitPack to use the latest build.

To use the interp mode, please use the following:

Savgol s1 = new Savgol(7, 2);
double[] out = s1.filter(signal, "interp"); 
// default mode is "interp" - `double[] out = s1.filter(signal)` also works

[lixiuming1991]

Exactly ! I think using Savgol is the best compatible with our current version. Thank you for your support again ! Keep in touch！

[psambit9791]

v3.0.0 now supports interp mode of operation for Savgol filter (also the default mode of operation). It is now available on Maven.

[lixiuming1991]

Get it ! It will be of great help to us， thanks for your hard working .