delete data of csv file
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SINDU GOKULAPATI
am 24 Mär. 2021
Bearbeitet: SINDU GOKULAPATI
am 16 Mai 2021
i have created a code such that data is appended to csv file every time the loop runs
but when i run the program again the new data is added with the old one
but i want to clear out the data in then csvfile before hand
what command do i use
delete('xyz.csv') deletes the whole file
4 Kommentare
Merve Buyukbas
am 24 Mär. 2021
But you shouldn't count on the main directory and instead use full paths everywhere in your script. This way the data can be located anywhere independently on where the code is.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/560443/image.jpeg)
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Walter Roberson
am 24 Mär. 2021
fclose(fopen('xyz.csv', 'w'));
When you open a file for writing with 'w' access, the existing content is discarded.
Note: the POSIX standard library specifies truncate() and ftruncate() functions that would be a closer match. However, MATLAB does not implement either of those.
6 Kommentare
Walter Roberson
am 12 Mai 2021
csvread() calls dlmread() with delimiter ','
You are writing to a file that is not necesarily in the same place as you are reading from, as your current directory is not necessarily D:\sem6\PROJECT
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