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is NA the name as NaN?

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Aidan Goy
Aidan Goy 2020 年 12 月 7 日
回答済み: Walter Roberson 2020 年 12 月 7 日
I have read in a csv file into a 406x9 matrix and one of the columns has a few values that are "NA", I want to replace these values with a number.
I have tried to use file(isnan(file))=0 to replace the NA values with 0 but when I run my code nothing happens and the NA values remain, so is NA different to NaN and therefor needs a different method to replace these NA values?

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回答 (1 件)

Walter Roberson
Walter Roberson 2020 年 12 月 7 日
https://www.mathworks.com/help/matlab/matlab_prog/clean-messy-and-missing-data-in-tables.html
shows dealing with NA

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