# Calculation of the average of the values of a column in a matrix [closed]

I am trying to have a list of values which corresponds to the mean of the values of each column of a matrix. Here I show a quick example (my current matrix has a dimension of 1000 * 1000)

If I have matrix like this: matrixExample = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 9, 9, 9}} I would have to obtain a list like this: mean values={5, 5.7, 6.3, 7}.

## closed as off-topic by Anton Antonov, MassDefect, Alex Trounev, m_goldberg, garejJun 28 at 9:02

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matrixExample = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 9, 9, 9}};