How to replace findpeaks() with another function

2018 5 20
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更新时间：2018 5 21
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Hi to all,
I use findpeaks function in my code to calculate the four maximum values of a fft function.
I use it in this way:
[maxpeaks, idx] = findpeaks(10*log10(psdx),'MinPeakDistance',195,'NPeaks',4,'MinPeakHeight', -Inf, 'SortStr','descend')
The problem is that I need to run the code in a Matlab version which doesn't have the Signal Processing Toolbox. Is there any solution to write a similar function without the need of the SP Toolbox?
Thank you!

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Star Strider
Star Strider 2018-5-20

2 个投票

If the MATLAB version is R2017b or later, the islocalmax (link) function is likely the best option.

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marcusbarnet
marcusbarnet 2018-5-21
do you know if it works also on R2017a?
Star Strider
Star Strider 2018-5-21
Unfortunately, it won’t. It was introduced in R2017b.

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