converting a variable in a table from cell to double

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Salma fathi
Salma fathi 2022-10-18
评论： Cris LaPierre 2022-10-19
I am trying to read some tables and concatenate them in one big table, but I am getting the following error
Cannot concatenate the table variable 'foE' because it is a cell in one table and a non-cell in another.
attached is the table "t1" that I am trying to read. the type of the variable in the other table is double, so how can I convert foE from cell to double
I am using the following lines to read the data
for kk = 1 : nfiles
fprintf('.......... File - %d of %d\n',kk, nfiles)
fullFileName = fullnames{kk};
t1 = readtable(fullFileName); %t1 stores the table from each file
if kk==1
Iono=t1;
else
Iono=[Iono; t1];
end
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Salma fathi
Salma fathi 2022-10-19
Thanks for your comment, i added the code that I am using to read the data.
Salma fathi
Salma fathi 2022-10-19
@Davide Masiello thank you for your comment, I tried cell2mat and got the following error
Brace indexing is not supported for variables of this type.
Error in cell2mat (line 42)
cellclass = class(c{1});
Error in Read_Split_Iono (line 32)
t1.foE = cell2mat(t1.foE);

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回答（1 个）

Cris LaPierre
Cris LaPierre 2022-10-18
Your variable is a cell because many of your values are '---'. Try this
t1.foE = str2double(t1.foE);
  2 个评论
Salma fathi
Salma fathi 2022-10-19
I did tried this before and got the folloing error
To assign to or create a variable in a table, the number of rows must match the height of the table.
Cris LaPierre
Cris LaPierre 2022-10-19
That is a separate error, and has more to do with what you are trying to do with the result than the conversion itself. Share the code that corresponds to that error message.

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