reduce() Function
This function is used to reduce a sequence of elements to a single value by processing the elements according to a function supplied. It returns a single value. This function is a part of functools module so you have to import it before using
Syntax:- from functools import reduce
Reduce(function name, sequence)
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With lambda function from functools import reduce a=[5,10,15,18] res=reduce(lambda n,m:n+m,a) print(res) output 48 |
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Without lambda function from functools import reduce def myfun(a,b): return a+b val=[10,20,30] add=reduce(myfun,val) print(“Addition is “,add) output Addition is 60 |
1: Finding max number In the list using reduce () function.
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Without lambda function from functools import reduce def myfun(a,b): if a>b: return a else: return b val=[20,10,30,50] max=reduce(myfun,val) print(“maximum no. is “, max) output maximum no. is 50 |
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With lambda function from functools import reduce val=[20,10,30,60,50] max=reduce(lambda a,b:a if a>b else b,val) print(“max is “,max) output max is 60 |