Unique function for tall tables

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R
R 2022-6-2
评论： dpb 2022-6-2
I want to filter my tall timetable and only keep values the first value where the timestamp is unique but MATLAB says I can not do that with tall tables.
Is there another way to go about this?
  2 个评论
Rik
Rik 2022-6-2
You could use a loop, keeping a shadow copy of all timestamps so far, keeping only the first.
The performance will not be great. It may still be good enough if you use a logical vector to mark deletions and remove unwanted rows in one go.
dpb
dpb 2022-6-2
I've not messed w/ the tall table stuff, but I'd think retime could do that for you...the limitations mentioned don't seem to prohibit it.

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