how to calculate the median of a matrix in matlab

To calculate the median of a matrix in MATLAB, you can use the median function. This function calculates the median value of the elements along a specific dimension of a matrix.

Here's an example:

main.m
% Create a sample matrix
M = [1 2 3; 4 5 6; 7 8 9];

% Calculate the median along the columns
col_median = median(M)

% Calculate the median along the rows
row_median = median(M, 2)
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In this example, we first create a sample matrix M. Then, we calculate the median along the columns using the median function without specifying a second argument (i.e., the dimension argument) – by default, the function will calculate the median along the first non-singleton dimension of the matrix, which is the columns in this case. The resulting vector col_median contains the median values of each column.

Next, we calculate the median along the rows by specifying the second argument to be 2, indicating that the function should calculate the median along rows. The resulting vector row_median contains the median values of each row.

Note that if the matrix has an even number of elements, the median function returns the average of the middle two values.