Use a loop to load .dat files (with matrices) and manipulate them

Question

Dimitris 2011-11-16

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/21431-use-a-loop-to-load-dat-files-with-matrices-and-manipulate-them

Hi, I have some .dat files which include measurements in a matrix form. I want to load them in matlab and in each of them to remove some of the columns.

I am trying something like this but it doesn't work:

nof=10;  % number of files
for i=1:nof
  D=dir('*.dat)
     load (D(i)....) %????
    % remove column
end

Any help?

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Answer 1

Walter Roberson 2011-11-16

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/21431-use-a-loop-to-load-dat-files-with-matrices-and-manipulate-them#answer_28225

在 MATLAB Online 中打开

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

D = dir('*.dat');
nof = min(10, length(D));
for K = 1:nof
  thisname = D(K).name;
  Indata = load(thisname);
  Indata(:,17) = [];  %delete column 17
  %then what?? Guess I'll save the data
  newname = ['new_' thisname];
  save(newname,'InData')
end