Array/List: how to find in which column the minimum value is?

[peachdot]

hi,

i used min() to find the minimum value of an array/list. it gives the min value of each row. But how do i know in which column does the min value is..?

a=[[0 for i in range(3)]for j in range(4)]
a[0]=[23,5,10]
a[1]=[11,34,12]
a[2]=[29,16,34]
a[3]=[53,35,13]

min(a[0])=5
min(a[1])=11
min(a[2])=16
min(a[3])=13

[Mariostg]

Something like a[0].index(min(a[0]))