Appending new data for every operation in excel

Question

KATARI LOKESH 2020-7-13

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/564335-appending-new-data-for-every-operation-in-excel

关闭： MATLAB Answer Bot 2021-8-20

Hi Experts,

I want to read every column of a csv file data and after every new operation , I need to append the newly obtained column data to same new csv file.

I have used dlmread and dlm write , can you please help me using dlmwrite.

clear all;close all;clc;
% R= omlfilename('fullpathext')
[num] = dlmread('Book1.csv');
for i =1: size(num,2)
	maindata = num(:,i);
	dlmwrite('test11.csv',maindata);
	
%%% Operation to be done	
	
	file = 'output.csv';
	output= dlmread(file);
	
end
dlmwrite('cleandata.csv',output,',','-append')