How to draw mean value as shown in picture

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Muhammadhn Muhammadh Khalid
Muhammadhn Muhammadh Khalid 2021 年 11 月 19 日
Hi,
I want to plot the mean value as shown in red line in the attached picture.
Any help or idea is highly appreciated.
Thanks

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Image Analyst
Image Analyst 2021 年 11 月 19 日
Another option is sgolayfilt(). It's like movmean() but instead of fitting a line to the moving window you can fit a quadratic. That should help it follow the big peak better an not smooth it out so much. I'd use a frame (window) length that's large and an order of 2 or 3. Experiment around to get what you like.
plot(x, y, 'k-');
smoothY = sgolayfilt(y, 11, 2);
hold on;
plot(x, smoothY, 'r-', 'LineWidth', 3);
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Muhammadhn Muhammadh Khalid
Muhammadhn Muhammadh Khalid 2021 年 11 月 21 日
Thanks. Exactly what i was looking for. Was working for higher f and smaller k. sgolayfilt(y, k, f).

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その他の回答 (1 件)

Matt J
Matt J 2021 年 11 月 19 日
  1 件のコメント
Muhammadhn Muhammadh Khalid
Muhammadhn Muhammadh Khalid 2021 年 11 月 21 日
Thanks. Found it very useful.

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