limit columns using readcell in matlab

You can limit the columns while reading the data from a spreadsheet file using the readcell function in MATLAB. The readcell function reads data from a spreadsheet file and returns the data in a cell array.

To limit the columns while reading the data, you can use the "Range" parameter in the readcell function. The "Range" parameter takes a string specifying the range of cells to read. The range can be specified in the A1 format with a colon (:) separating the start and end cells. For example, to read only the first two columns of a spreadsheet file, you can use the following code:

main.m
data = readcell('filename.xlsx', 'Range', 'A1:B100');
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This reads the first two columns (A and B) of the first 100 rows of the spreadsheet file.

If your data is in a table format, you can use the following code to limit the columns:

main.m
tbl = readtable('filename.xlsx');
tbl = tbl(:,1:2);
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This reads the first two columns of the table and returns a new table with only those columns.

Note: The above code examples assume that your data has headers for the columns. If your data does not have headers, use integer values instead of letters in the range specification.