peaks - 1D peak finding without Signal Processing Toolbox

版本 1.0.2 (5.3 KB) 作者: Kristupas Tikuišis

Find peaks in 1D data | Matlab findpeaks equivalent

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更新时间 2023/4/3

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Peak finding algorithm for essential signal processing. Returns peak amplitudes and locations. Various filters can be selected such as minimal absolute value, threshold above the immediate surroundings or predefined minimal spacing between the peaks.

It's a replacement for Matlab's proprietary 'findpeaks' function using the same syntax. Does not require any additional Matlab toolbox, just the base program.

MinPeakHeight, Threshold and MinPeakDistance parameters are accepted, just like in Matlab's original function. As of this moment, peak prominence is not implemented yet.

Accepths a bare 1D input array and optional position vector or sampling value.

The peak finding algorithm works by comparing each point to its immediate surroudings. A point (n) is considered to be a peak if it is strictly greater than its immediate neighbors (n-1) and (n+1).

Personal note: annoyingly enough, Matlab's own function requires a separate Signal Processing Toolbox. This function is too essential in my daily work. I consider it too basic to be charged extra. Therefore, I tried to write a decent intro version of my own.

引用格式

Kristupas Tikuišis (2024). peaks - 1D peak finding without Signal Processing Toolbox (https://www.mathworks.com/matlabcentral/fileexchange/127324-peaks-1d-peak-finding-without-signal-processing-toolbox), MATLAB Central File Exchange. 检索来源 2024/8/1.