How to import a lot of .blf data files?

hello i want to import to matlab a lot of data files with one line to write on MatLab instead of that all line.

The files are .blf files:

2020_10_20__06_19_48.blf;

2020_10_20__06_09_92.blf;

2020_10_20__06_03_95.blf;

2020_10_20__06_82_08.blf;

2020_10_20__06_19_46.blf;

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[Mathieu NOE]

hello

I don't know what those blf extensions are and the format of the files and how it's suppsoed to be loaded inside ML.

but if the question is about how to open easily many files in one simple way, attached some examples for excel files . maybe you can easily adapt it to your case

[Walter Roberson]

https://www.mathworks.com/help/vnt/ug/blfread.html

[Aymen Rejab]

Hello,

Actually, I could read the files but one by one with the function blfread(...) but the problem is that I want to import hundreds of them at the same time

[Mathieu NOE]

so look at my suggestions - i'll be glad to further help you if you're still in trouble

Answer 1

[Walter Roberson]

dinfo = dir('2020*.blf');
filenames = {dinfo.name};
numfiles = length(filenames);
contents = cell(numfiles,1);
for K = 1 : numfiles
    contents{K} = blfread(filenames{K});
end

You now have a cell array contents with one entry for each file matched by 2020*.blf .

This code does not assume that they are all the same size.

Depending on what has to be done with them, it would not be uncommon to use

M = cat(ndims(contents{1})+1, contents{:});

to create a single matrix M with all of the contents.

[Aymen Rejab]

It still didn'T work :/

and I don' t understand why it shows me this error message:

Index exceeds the number of array elements (1).

[Walter Roberson]

please post the code you are testing and the complete associated error message

[Chong Wang]

very brilliant solution.