Hello,

I need your help on this matrix:
 

 1 1 1 1 1 1
 2 2 2 2 2 2
 3 3 3 3 3 3 
 5 5 5 5 5 5
 2 2 2 2 2 2
 3 3 3 3 3 3 
 6 6 6 6 6 6
 2 2 2 2 2 2
 3 3 3 3 3 3 
 1 1 1 1 1 1
 2 2 2 2 2 2
 3 3 3 3 3 3 

First three rows represent first simulation, next three rows = second simulation etc.
I would like to estimate the values in row 1 for example by taking  the mean  of rows 1, 4, 7, 10. Do same for all other rows. So the resulting matrix is 
3-by-6.

Thanks
Atem.
	[[alternative HTML version deleted]]

