Extracting specific data from a cell array

Question

fadzhi 2021-2-1

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/732643-extracting-specific-data-from-a-cell-array

编辑： Stephen23 2021-2-2

Dear all,

I am using following code to read data from multiple text files. So far is okay. Now i wanted to create a matrix that takes entries from the 9th and 11th colum of each cell array A (with changing length due to new text files) and places them after one another. Many thanks for your suggestion and ideas.(Example file is attached)

D = 'T:\New\files';
S = dir(fullfile(D, '*.txt'));
N = length(S);
A = cell(N,1);
fmt = '%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f%f';
% fmt=repmat('%f',1,2);
for k = 1:N
  fid = fopen(fullfile(D,S(k).name), 'r');
  A(k)= textscan(fid, fmt, 'Delimiter', '\t', ...
                           'headerlines', 33, ...
                           'CollectOutput', 1);
  fid=fclose(fid);
end