how to substract a value from each row in a table in matlab

You can subtract a scalar value from each element in a matrix in MATLAB using simple arithmetic. First, load your table into a MATLAB matrix using the table2array function, then subtract the desired value from each element using the - operator. Here's an example:

main.m
% Load table
myTable = readtable('myTable.csv');

% Convert table to matrix
myMatrix = table2array(myTable);

% Subtract a scalar value from each element in the matrix
myMatrix = myMatrix - 5;
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This code will subtract 5 from each element in myMatrix. Replace 5 with your desired value.