[R] Matrix summary

[Ashta]

hi all,

I have  a square matrix (1000 by 1000),
1. I want calculate  mean,  min and max values for each column and row.

2, I want pick the  coordinate value of the matrix that has the max
and min value for each row and column.
This an example 4 by 4 square matrix


                                              Mean    Min    Max
            117   12    13     21    40.75       12    117
             21    32    11       1     16.25       1       32
             65    43    23       7      34.5        7       65
             58    61    78     95        73        58      95
Mean    65    25    37   31.25
Min        21    12    11    1
Max     117    61    78    95


Thank you