Using Diff() with NaN values

2021 4 2
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更新时间：2021 4 3
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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.

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david crowley
david crowley 2021-4-3
编辑：david crowley 2021-4-3
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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You can substitute all 'nan' values with 0's by locating them via isnan() and then substituting.

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