How do I manipulate a column in a data file ??

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Add 2015-11-3

回答： dpb 2015-11-3

I have a data file with 10 columns and 28380 rows. I want to manipulate only the 7th column and reassign the values to the data. How do I do it ??

TastyPastry 2015-11-3

What kind of data file is it? .xlsx, .csv, etc.?

dpb 2015-11-3

If it is an ASCII data file, then read the file, do the computation(s) on the column in question and rewrite it.

If it were an Excel file you could use xlsread|xlswrite to read the specific column but there's not a general way to write a portion of a text file.

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