Clear Filters
Clear Filters

Using writetable in a loop to save each iteration as a new line

11 views (last 30 days)
I am trying to use writetable in a loop so that each iteration prints on a new line. Since the data is only one row, I would want something like A1, A2, A3... but it seems like this can't be done because 'A1' is a string. This is what I have:
for w = 1:n %each folder has a different number of files defined by n
T(1:1,:)
writetable(T,filename, 'Sheet',1,'Range', 'A(w)') %this needs to be 'A1' to assign the location of the table, but is there a way to use A(index)?
end
Thanks a bunch

Accepted Answer

Chenchal
Chenchal on 3 Nov 2017
use ['A' num2str(w)] where w = 1 or a loop var
% code
writetable(T,filename,'Sheet',1,'Range', ['A' num2str(w)])
  2 Comments
Eric Jenkins
Eric Jenkins on 3 Nov 2017
Thank you so much, this worked great. I did run into the issue of the table heading messing up the output when I write to an xls file, because as the file was incremented per row, the heading was taking up the allocated row. But I did a quick fix using:
'WriteVariableNames', false
I am not sure if there is a better way to do this where I could keep only the first row of headings?
William Harris
William Harris on 30 Sep 2021
To keep the headings you can use an if clause:
init_cell = sprintf( 'A%s',num2str(count) );
if count == 1
writetable(T, filename, 'Sheet', 1, 'Range', init_cell);
else
writetable(T, filename, 'Sheet', 1, 'Range', init_cell, 'WriteVariableNames', false);
end
However, I am getting an issue with this where the final table doesn't include the first row of data. Does anyone have a fix for this?

Sign in to comment.

More Answers (0)

Categories

Find more on Loops and Conditional Statements in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!