max function

RameshGautam — Tue, 06 Mar 2012 14:39:20 GMT

Does Python has 'max' function?

I need to find maximum value among hundreds of variables. For example, I have 2, 3, 4, 1, 2, 3, 4, 5, 1, 2, 3, 0, 10, 20, etc and I would like to write a code like
max(2, 3, 4, 1, 2, 3, 4, 5, 1, 2, 3, 0, 10, 20) and get the maximu value. I tried, somehow it did not work.

I found a max function in ArcGIS help as
max([!field1!, !field2!, !field3!])

what does ! mean?

Thanks

Re: max function

curtvprice — Sat, 11 Dec 2021 11:04:36 GMT

max(2, 3, 4, 1, 2, 3, 4, 5, 1, 2, 3, 0, 10, 20) and get the maximu value. I tried, somehow it did not work.

Yes, it should work. there are two valid syntaxes:

>>> max(3,2,1,5)
5
>>> max([3,2,1,5])
5

I found a max function in ArcGIS help as
max([!field1!, !field2!, !field3!])

what does ! mean?

This is the python max function (second syntax), used inside the Calculate Field tool (which uses a "!" delimeter to substitute field names in to Python expressions).

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max function

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