How to create a new data set, from an existing data set, with a different time increment than the original

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Austin Sowers 2018-8-22

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https://ww2.mathworks.cn/matlabcentral/answers/415771-how-to-create-a-new-data-set-from-an-existing-data-set-with-a-different-time-increment-than-the-or

评论： jonas 2018-8-22

Suppose you have a very large x, y data set where "x" is time and "y" is some known value. The time increment for "x" is 0.02 seconds. "y" is known at every 0.02 seconds. I would like to change the time increment to 0.010269 seconds and use the known "y" values to find the new "y" values for the 0.010269 increment based off of a linear interpolation between the known original "y" values.

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jonas 2018-8-22

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编辑：jonas 2018-8-22

Convert x to duration array
Build a timetable with x and y
Use retime with timestep set to 0.010269

Provide data if you want code.

As a sidenote: based on the very specific timestep I'm guessing you want to align this time-series with another time-series. If that is the case, then simply use the duration array of the other time-series as input to retime.