[Tutor] index of max value in a list

Kent Johnson kent37 at tds.net
Mon Dec 25 13:58:36 CET 2006

anil maran wrote:
> the max function, it returns the maximum value in the
> list rather than the index associated with that value.
> How do I return the index?

l.index(max(l)) will give you the index of the first occurrance of the 

m = max(l)
[ i for i,v in enumerate(l) if v==m ]

will give you a list of all indices where the max occurs. (Putting the 
'max(l)' outside the list comprehension prevents it from being evaluated 
for each loop element.)


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