Do I have to upgrade to Matlab 2020?

Hi! :)

In one of my apps I am using writetable function and my problem seems to be that each time I run the app, the data in the table ( heterogenous table) that is written, is not overwritten.

Can somebody help me with my problem?

[Dyuman Joshi]

Please share the code you are working with, so we can run it and see what the problem is.

[Muazma Ali]

@Dyuman Joshi I dont get any error messsage but I can see the data is not updated..

[Dyuman Joshi]

Even then, without seeing the code it is not possible to suggest how to solve the issue/problem.

Answer 1

[Image Analyst]

I'd say sure, but upgrade to R2023b, the latest, instead of R2020a. Can't hurt. Otherwise call delete(filename) before calling writetable to make sure the file has only the new data in it.

[Muazma Ali]

@Image Analyst I did it but it seems all data is overwrittten except the character data..

Do I really have to upgrade to newer versions of Matlab..? It is quite expensive , I already have matlab 2018

[Image Analyst]

Well you asked about upgrading...but no, it should not be necessary. You did delete the file like I suggested before writing it again, right? If so, then if in the new file the character data is not written out with writetable then that means that the character data was not present in the table. Check all the columns of the table just before you call writetable.