Suppose you have the following data (A,B,C) in three-column format.

     A       B       C
--------------------------
t=1  2.2     2.6     2.4
t=2  2.4     2.8     2.2 
t=3  2.6     2.7     2.4 
t=4  2.7     2.6     2.5
t=5  2.6     2.5     2.6
t=6  2.5     2.4     3.0

Write a function to find and return the maximum value from each column as well as its time index. For the supplied example, A has a maximum value of 2.7 when t=4, B has a maximum of 2.8 when t=2, and C has a maximum of 3.0 when t=6. Therefore, the function should output:

 m = [2.7 2.8 3.0]   tm = [4 2 6]