MATLAB: Re-formatting a matrix

Question

This is a simplistic example of a problem I am facing:

depth = [0:1:20]';
data = rand(1,length(depth))';
d = [depth,data];
d = [d;d;d];

Consider the matrix 'd'. Here we have depth in the first column followed by temperature measurements recorded at that depth in column 2 (in this example we have 3 days of data). How could I alter this matrix so that each column represents a specific depth and each row represents time. So, finally I should have 3 rows with 21 columns (hence I do not need the column of depths).

Answer 1

dout  = reshape(d(:,2),numel(depth),[]).';