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Excel sheet creation error

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Isao Okada
Isao Okada 2017-9-4
评论： Isao Okada 2017-9-4
An Excel workbook can be created by writetable() command. When I overwrite with the same name Excel file but with different length data, the old data in the excel sheet still remains.
In an example below, after creating Excel sheet with len=100, I overwrite data made by len=10;
However, row 12 to row 101 data in the sheet remain the same as before. This R12 to R101 data should be deleted. I want to solve this issue.
Example
% ExcelWrite.m
len = 100; % 10; << change length;
fr = (1:len)';
ga =zeros(len,1);
ph = zeros(len,1);
for i=1:len
ga(i) = i+3.4;
ph(i)= i*2+80-50.6*2;
end
%%Excel sheet write
T = table( fr, ga, ph,'VariableNames',{'Fre','gain','ph'});
filename = strcat('data','1','.xls');
writetable(T,filename,'sheet',1,'Range','A1');

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采纳的回答

Image Analyst
Image Analyst 2017-9-4
Before writetable(), add these 4 lines
recycle('on');
if exist(filename, 'file')
delete(filename);
end
  1 个评论
Isao Okada
Isao Okada 2017-9-4
I got a good result of which I desired by your answer. Thank you so much.

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