MATLAB: Importing Data Using Function

bad ideaimportimport dataimport function

Hello,

I have a set of data, each file is in .spe format. The function readSPE reads these files and outputs a 3D array.

I would like to write a script which would convert each of the .spe files to a 3D array with variable name = file name.

Please help! Thanks 🙂

Best Answer

Why do you want to do this unwise thing?

http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F

How can you then have code that operates on that array if you don't know what the array will be called until runtime when the data file has been loaded?

I'd recommend you just call it data3d or something and not complicate things by having the variable have a name that changes depending on what data file you read in.

Related Solutions

MATLAB: Import Data Into Workspace Issue

You can use 'fileparts' command to get the name of the file:

[pathstr,name,ext] = fileparts(filename); % Read the file name

Process/read the data from the file

eval([matlab.lang.makeValidName(name) '=' data ';']); % Assign the value to a variable named 'filename'

See the following documentation link for more information:

https://www.mathworks.com/help/matlab/ref/fileparts.html

https://www.mathworks.com/help/matlab/ref/matlab.lang.makevalidname.html

MATLAB: Applying Function to Structure

In terms of your existing code, you would just add a readSPE(fullFileName) after your fprintf().

If you want to use more compact code then

filePattern = fullfile(myFolder, '*.spe'); 
dinfo = dir(filePattern);
filenames = fullfile(myFolder, {dinfo.name});
output = arrayfun(@readSPE, filenames, 'uniform', 0);

Best Answer

Related Solutions

MATLAB: Import Data Into Workspace Issue

MATLAB: Applying Function to Structure

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