Question

Are you able to help me by explaining how to import data from a .csv file into MATLAB using the import data wizard? I need to use the 'Generate Function' option in the import data wizard. How do I then call this data in MATLAB?

Please help me

Thank you

Answer 1

Step 1: Open the file(s) in the Import Tool.

Step 2: Click Import Selection, and then select Generate Function. The Import Tool generates code similar to the following excerpt, and opens the code in the Editor.

function data = importfile(filename,startRow,endRow)
%IMPORTFILE Import numeric data from a text file as a matrix.
...

Step 3: Save the function.

Step 4: In a separate program file or at the command line, create a for loop to import data from each text file into a cell array named myData:

numFiles = 25;
startRow = 2;
endRow = inf;
myData = cell(1,numFiles);

for fileNum = 1:numFiles
    fileName = sprintf('myfile%02d.txt',fileNum);
    myData{fileNum} = importfile(fileName,startRow,endRow);
end

Each cell in myData contains an array of data from the corresponding text file. For example, myData{1} contains the data from the first file, myfile01.txt.