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Using Diff() with NaN values

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david crowley
david crowley on 2 Apr 2021
Edited: david crowley on 3 Apr 2021
I am trying to find the difference between rows using the diff() function. However, because the rows contain NaN values I am getting the following error.
'Check for missing argument or incorrect arugument data type in call to function diff'
The data is a timetable with weekly closing stock prices and I just need to calculate the difference in price between weeks.
  1 Comment
david crowley
david crowley on 3 Apr 2021
I've tried to use the following to replace the NaN values, which worked - but trying to use the diff() function in a timetable does not.
fillmissing(C,"constant",0);

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Answers (1)

Sulaymon Eshkabilov
Sulaymon Eshkabilov on 2 Apr 2021
You can substitute all 'nan' values with 0's by locating them via isnan() and then substituting.
  1 Comment
david crowley
david crowley on 3 Apr 2021
This doesn't work with timeseries though?

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