difference between abrupt changes functions

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Oded Scharf 2019-7-15

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https://ww2.mathworks.cn/matlabcentral/answers/471731-difference-between-abrupt-changes-functions

评论： Jan 2019-7-16

Hey,

I'm was trying to find changes in my signal and I used 'findchangepts' function which worked really good (I used both mean and linear statistics) but it works only with signal processing toolbox which is missing to my colleagues.

Now I found the function 'ischange' which looks similar and doesn't need the toolbox but it brings different results.

Do anyone know what is the difference between these two functions?

Thanks!

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Oded Scharf 2019-7-16

I'm attaching two figures of the same signal. One with findchangepts division and the other with ischange. Both of the cange points are different between the two figures.

Jan 2019-7-16

To examine a fig file, you have to open it in Matlab at first. Please post some data and the used code instead. Maybe a screenshot is easier also for a comparison of the results you get.

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