I need to load multiple files and extract one value from each file into an output file

I have 300 files containing 8000 columns and 16 rows. I need to read in each file and extract the value from column 1300 row 14. I want to extract all these values into one output file. Can anyone help? Thanks!

[Adriana Amrhein]

Forgot to mention the files do not contain an extension. They are simply listed as a file.

[Voss]

Can you attach one such file?

[Adriana Amrhein]

I just converted them all to text files.

[Voss]

Then you should be able to use load to read the files:

% fn is assumed to be a cell array containing your 300 file names (full paths)
data = zeros(1,300);
for i = 1:300
    new_data = load(fn{i});
    data(i) = new_data(14,3000);
end

And then fopen, fprintf, etc., to write your output file.

Answer 1

[Prateek Rai]

To my understanding, you have 300 text files containing 8000 columns and 16 rows and you want to read data of column 1300 row 14 from each file.

% input to tabularTextDatastore will be the location of the folder where you have your text files
dts = tabularTextDatastore('Location of the folder containing text files');
files = dts.Files;
% data will store the data of column 1300 row 16 from each text files
data = zeros(300,1);
% for loop to read the data from every text files
for i = 1:1:length(files)
    file_i = load(files{i});
    data(i) = file_i(14,1300);
end

You can refer to tabularTextDatastore MathWorks Documentation page to learn more on datastore for tabular text files.