You forgot to attach your data. But you can try smoothdata(). It looks like it in turn calls movmean(), movmedian(), sgolayfilt(), or whatever smoothing method you want:
Smoothing method, specified as one of the following:
- 'movmean' — Moving average over each window of A. This method is useful for reducing periodic trends in data.
- 'movmedian' — Moving median over each window of A. This method is useful for reducing periodic trends in data when outliers are present.
- 'gaussian' — Gaussian-weighted moving average over each window of A.
- 'lowess' — Linear regression over each window of A. This method can be computationally expensive, but results in fewer discontinuities.
- 'loess' — Quadratic regression over each window of A. This method is slightly more computationally expensive than 'lowess'.
- 'rlowess' — Robust linear regression over each window of A. This method is a more computationally expensive version of the method 'lowess', but it is more robust to outliers.
- 'rloess' — Robust quadratic regression over each window of A. This method is a more computationally expensive version of the method 'loess', but it is more robust to outliers.
- 'sgolay' — Savitzky-Golay filter, which smooths according to a quadratic polynomial that is fitted over each window of A. This method can be more effective than other methods when the data varies rapidly.
