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map python 3

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Atomic Cabbage answered on June 5, 2020 Popularity 10/10 Helpfulness 3/10

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map python 3

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#generate a list from map iterable with lambda expression
list( map(lambda x: x*2, numeros) )

Popularity 10/10 Helpfulness 3/10 Language python

Source: docs.hektorprofe.net

Tags: map python

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Contributed on Nov 21 2020

Atomic Cabbage

0 Answers Avg Quality 2/10

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python map function

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# The map function applies a function to every item in a list,
# and returns a new list.

numbers =  [0, -1, 2, 3, -4]

def square_func(n):
    return n*n
 
new_numbers = list(map(square_func, numbers))
#new_numbers: [0, 1, 4, 9, 16]

Popularity 10/10 Helpfulness 4/10 Language python

Source: Grepper

Tags: map-function map-functi

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Contributed on Jan 30 2022

Dark Dotterel

0 Answers Avg Quality 2/10

Python Map function

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# Let's define general python function
>>> def doubleOrNothing(num):
...     return num * 2

# now use Map on it.
>>> map(doubleOrNothing, [1,2,3,4,5])
<map object at 0x7ff5b2bc7d00>

# apply built-in list method on Map Object
>>> list(map(doubleOrNothing, [1,2,3,4,5])
[2, 4, 6, 8, 10]

# using lambda function
>>> list(map(lambda x: x*2, [1,2,3,4,5]))
[2, 4, 6, 8, 10]

Popularity 10/10 Helpfulness 2/10 Language python

Source: thetechbrainer.com

Tags: map-function map-functi

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Contributed on May 04 2021

BodeN'Cug

0 Answers Avg Quality 2/10

map in python

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#Syntax
map(functions, iterables)

Popularity 10/10 Helpfulness 2/10 Language python

Source: Grepper

Tags: map

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Contributed on Jul 17 2020

san_bt

0 Answers Avg Quality 2/10

map in python

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# Python program to demonstrate working 
# of map. 
  
# Return double of n 
def addition(n): 
    return n + n 
  
# We double all numbers using map() 
numbers = (1, 2, 3, 4) 
result = map(addition, numbers) 
print(list(result))
# result [2, 4, 6, 8]

Popularity 10/10 Helpfulness 2/10 Language python

Source: Grepper

Tags: map

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Contributed on Jun 05 2020

Grumpy Gull

0 Answers Avg Quality 2/10

map python

Comment

#### Core python use case #####
#map(func_name, some_list)

items = [1, 2, 3, 4]
list(map(lambda x: x + 2 , items))  ## [3, 4, 5, 6]
#### Dataframe Application #####
# Method 1
df["col"].apply(lambda x: x+1)
# Method 2
genders = {'James': 'Male', 'Jane': 'Female'}
df['gender'] = df['name'].map(genders)

Popularity 9/10 Helpfulness 2/10 Language python

Source: Grepper

Tags: map

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Contributed on Feb 01 2023

Innocent Iguana

0 Answers Avg Quality 2/10

map in python

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map(function_to_apply, list_of_inputs)

Popularity 10/10 Helpfulness 2/10 Language python

Source: Grepper

Tags: map

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Contributed on Oct 20 2020

Delta Sierra

0 Answers Avg Quality 2/10

map in python

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'''
Map:
A standard function that accepts at least "two-arguments",
a function and an "iterable"

Iterable - something that can be iterated over (list, dictionary,
strings, sets, tuples)

runs the Lambda for each value in the iterable and 
returns a map object which can be converted into another data structure

Keyword:
map(function/lambda func., variable)
'''
# Example:
nums = [1,2,3,4]
power = map(math.pow(2), nums)
print(list(power)) # 1, 4, 9, 16
powerLamb = map(lambda x: x**2, nums) # 1, 4, 9, 16

Popularity 10/10 Helpfulness 2/10 Language python

Source: Grepper

Tags: map

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Contributed on Sep 07 2022

MazelTov27

0 Answers Avg Quality 2/10

map in python

Comment

product = 1
list = [1, 2, 3, 4]
for num in list:
    product = product * num

# product = 24

Popularity 10/10 Helpfulness 2/10 Language python

Source: book.pythontips.com

Tags: map

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Contributed on Aug 28 2021

Blue Bear

0 Answers Avg Quality 2/10

python map

Comment

# Python program to demonstrate working
# of map.
  
# Return double of n
def addition(n):
    return n + n
  
# We double all numbers using map()
numbers = (1, 2, 3, 4)
result = map(addition, numbers)
print(list(result))

Popularity 10/10 Helpfulness 2/10 Language python

Source: www.geeksforgeeks.org

Tags: map

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Contributed on Aug 11 2022

Grieving Goshawk

0 Answers Avg Quality 2/10

map python 3

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