how can i read large data in loop

Question

khatere darvish 2018-10-7

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/422644-how-can-i-read-large-data-in-loop

评论： khatere darvish 2018-10-8

hello everybody

I have data with names 's001r01.edf', 's001r02.edf', 's001r03.edf','s002r01',... and it ends at 's109r03'. I know how I can read data but I want read the data in a loop. actually I want read the data only with first section of its name, it's mean 001,002,...,109. I read the data with this function:

[data1, header] = ReadEDF('S109R04.edf');

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Kevin Chng 2018-10-7

在 MATLAB Online 中打开

sorry if my answer is wrong for you

EDF = dir('*.edf'); 
data = cell(length(edf),1);
header = cell(length(edf),1);
for q = 1:length(edf) 
     [data(q), header(q)] = ReadEDF('S109R04.edf');
end

Line 2 and line 3 are not necessary if your readEDF return only 1 single variable.

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Answer 1

ANKUR KUMAR 2018-10-7

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/422644-how-can-i-read-large-data-in-loop#answer_340201

在 MATLAB Online 中打开

F=dir('*.edf')
for i=1:length(F)
    [data1, header] = ReadEDF(F(i).name);
    %do you usual calculation
    %if you wish to store data1 and header for all files, then uncomment the next line
%     [data1{i}, header{i}] = ReadEDF(F(i).name);
end