Timeseries events - how to extract y values for each event

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Rebecca Harding 2021-3-18

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评论： Rebecca Harding 2021-3-19

Hello,

I have plotted a timeseries for some behavioural data and I would like to extract all of the scores (on the y axis) for the times in the events that I have entered. Please could someone help point me in the right direction

Thanks

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Adam Danz 2021-3-18

I assume the red dots are the times you entered. If so, how did you plot them without using the (x,y) coordinates? I seems that you already have the y-data if you plotted the red dots and the red dots are the times you entered.

Rebecca Harding 2021-3-19

i used the timeseries function, although I think that's overcomplicated things!

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Answer 1

David Hill 2021-3-18

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https://ww2.mathworks.cn/matlabcentral/answers/776912-timeseries-events-how-to-extract-y-values-for-each-event#answer_651672

在 MATLAB Online 中打开

I am assuming you have two arrays, t and y, of the same length. To get the y values corresponding to an array of input times, T, then:

y_values=y(ismember(t,T));

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Rebecca Harding 2021-3-19

So we have continuous time on the X axis, and z scores on the y axis (sampled every 1s). I need to find the corresponding z scores for a list of events that occur between the measured timepoints. This doesn't seem to be working

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