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How can I edit this code ?

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ND
ND 2015-11-30
关闭： MATLAB Answer Bot 2021-8-20
Please I have this code
% code
ex = dlmread( 'BB.txt' ) ; %output data
S11 = dlmread( 'AA.txt' ) ; % input data
buffer = [S11,ex] ;
[~, ca] = unique( buffer, 'rows' ) ;
buffer = buffer(sort(ca),:) ;
Mshuffled = buffer(randperm(size(buffer,1)),:);
x1Range= 'B';
xlswrite( 'first.xlsx', [{'S11'}; num2cell( Mshuffled(:,1) )], 'X',x1Range) ;
xlswrite( 'first.xlsx', [{'E11'}; num2cell( Mshuffled(:,2) )], 'Y' ) ;
I need to multiply the data in (ex.txt) by 10^4 . So all rows in E11 column will be multiplied by this factor. Is that possible?
Many thanks

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回答（1 个）

Image Analyst
Image Analyst 2015-11-30
Yes, but first you need to call dlmread('ex.txt') which you have not done yet. You've only read in AA.txt and BB.txt.
exData = dlmread( 'ex.txt'); % Input data
Next, I don't know what the "E11" column is. Columns have only letters, not letters and numbers. Do you mean the column that cell E11 is in, which, of course, is column "E" (column 5)? If so then:
% Multiply column 5 by 10^4
exData(:, 5) = exData(:, 5) * 10000;

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