detect increse/decreases in time series data
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Hello everyone,
I have time series data of an engine power output as you can see in the picture. I want to find a way to detect the changes in load (increase/decrease) and the duration of these changes (how much time to increase and how much time of decrease). So I want something like time of start increasing,time of stop increasing, time of start decreasing , time of start decreasing. so I can calculate the durations.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/191250/image.png)
Any idea woluld be helpful.
Thanks, Vanessa
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jonas
2018년 6월 14일
You can use the functions findchangepts, or ischange for time-series data, to detect abrupt changes in terms of slope or mean value.
Provide some data if you want more details
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