How to find corresponding peaks between two datasets using timestamps
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Hi everyone,
I have a 2 datasets (Dataset_Black and Dataset_Grey) of which peaks are known to follow each other up. Now I am trying to automatically select peaks throughout the whole dataset (which consists over 2018-2020). See below: the related peaks are circled, as you can see each peak of the black Dataset_Black is followed by a smaller peak in Dataset_Grey. In the end I need the maximums of each corresponding peak in order to test whether a larger peak in Dataset_Grey indeed is preceded by a larger peak in Dataset_Black.
I selected the peaks in the grey dataset I want to analyse using:
[pks_grey loc_grey]=findpeaks(Dataset_grey.fixed_10mins, 'MinPeakDistance', 1, 'MinPeakHeight', 350, 'MinPeakProminence', 200);
This gives me a dataset of 114 time locations and their value. How can i use this to find the accompying preceding peaks in the blackline?
Or does someone have a better way to find and select these peaks?
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Answers (1)
KSSV
on 15 Sep 2020
Read about knnsearch. Provide the locations of Grey data and get the distance, nearest points to Black data. By checking the distance or the respective locations, you can pick your required values.
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