Is there a global function in python to find the maximum of a 2d array based on a specified dimension?

Question

Example:

input=[(10,1),(2,3),(6,2)]
output= 3

(since the maximum of the 2nd dimension is 3, 3 is returned)

Ch3steR · Accepted Answer · 2020-03-07 07:23:22Z

1

You can use max with key parameter.

input=[(10,1),(2,3),(6,2)]
output=max(input,key=lambda x:x[1])[1]
# 3

You can use itemgetter(If you don't prefer using lambda)

from operator import itemgetter
output=max(input,key=itemgetter(1))[1]
# 3

answered Mar 7, 2020 at 7:23

Ch3steR

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Comments

theletz · Accepted Answer · 2020-03-07 20:03:09Z

1

You can use numpy to do exactly this

import numpy as np
a = np.array(input)
print(a[: , 1].max())

answered Mar 7, 2020 at 7:26

theletz

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Ohh.. I didn`t understand that this is the desired output. Fixed it.

محمد علی امینی · Accepted Answer · 2020-03-07 07:33:06Z

0

I don't know that function there are or no. But look at this:

my_items = [(10,1),(2,3),(6,2)]

my_items.sort(key=lambda e: e[0])

print (my_items[0])

answered Mar 7, 2020 at 7:33

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