Example

Compute the COLMEAN of the following matrix:

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

b = colmean(a);

produces a row, or vector, of the following values:

b == {{2, 5, 8}}

Performing the TRANSPOSE of the above row vector produces a column vector. You can use this vector to perform vector calculations.

transpose(b) ==  {2,
                5
                8}

See the Statistical Analysis section further examples of functions that produce a vector from a matrix.