import many txt files

Hi, I have many text files about 16574, I need to import them to matlab and calculate the average of each files.

[Jan]

What is your question? What have you tried so far?

[dbmn]

I suggest using the following functions.

1. Files=dir(fullfile(pwd,'*.txt'));
2. for j=1:1:numel(Files)
3. textread / fscanf / csvread
4. mean()

and if you get stuck, ask again :)

Answer 1

[dpb]

May find following of interest... Filefun: Apply a function to files

[malihe keykhai]

thanks for your help. I couldn't solve my problem. I write your answer in this way : Files=dir(fullfile(pwd,'*.txt')); for j=1:1:numel(Files) csvread('Files') mean(Files) end but it doesn't work. I don't know how can export mean of each file in one text files.

[Jan]

@malihe keykhai: Thanks for posting, what you have done so far. The code contains some problems: "csvread('Files')" tries to read the file names 'Files'. mean(Files) tries to calculate the average of the struct Files created by the dir() command, and this must fail. See my answer.

Answer 2

[Jan]

Folder = pwd:
Files  = dir(fullfile(Folder, '*.txt'));
Result = cell(1, numel(Files));
for j = 1:numel(Files)
  aFile     = fullfile(Folder, Files(j).name);
  Data      = csvread(aFile);
  Result{j} = mean(Data, 1);
end

The question remains, what "average of each files" exactly mean. Here the mean() along the first dimension is calculated and stored in a cell. But perhaps you want something else.

[malihe keykhai]

Thanks it works. each file contain temperature for long time and I need average of them. Would you please guide me, I want result, each cell which fill by average of file show me related to which file. Thanks

[Jan]

I do not understand your question. My current code creates a cell, which contains the vector with the mean of each file: Result{k} contains the mean of Files(k).name. Is this what you need?