MATLAB Answers

Assign a "double-column" to a "cell-coloumn"

38 views (last 30 days)
alphabetacharly on 18 Jun 2018
Commented: alphabetacharly on 9 Jul 2018
I imported some data into a (time-) table. Because of an error-message when receiving the data, few columns are cells with 'error...' as entry in the top row and '' in all other rows, while all other columns contain only doubles. I wrote some code to detect these few "error-columns" and I would like to replace them by a column full of NaNs. However, it is not possible to simply replace the column since the original column is type cell and the new one is type double and conversion from cell to double is not possible.
I hope one can understand what my Problem is and I am deeply grateful for every help.


Sign in to comment.

Accepted Answer

Greg on 19 Jun 2018
You can replace one entire column with NaN very simply:
tableVariable.VarWithErrors = NaN(height(tableVariable),1);
To do multiple variables, put the above in a loop. There might be a one-liner solution, but I'm not seeing it right now.
If you are trying to do partial columns, let me know and I'll draw up an example for that (it's a little more involved).

  1 Comment

alphabetacharly on 9 Jul 2018
Thanks Greg. You're absolutely right. I didn't use the table.var accessing method because I didn't know that one can use numbers instead of the varnames (which I actually not know), too. For example:
a=[1, 4, 5]
doesn't change the whole column.

Sign in to comment.

More Answers (0)

Sign in to answer this question.