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Lamda function explanation - mrcool4 - Jul-04-2018
Hi All,
Can someone please explain the below code?I am mainly interested in the lambda function lambda x: '{0:0>10}'.format(x). Thanks.
## Add leading zeros to the integer column in Python
df['Col1']=df['Col1'].apply(lambda x: '{0:0>10}'.format(x))
print dfTIA
RE: Lamda function explanation - buran - Jul-04-2018
lambda x: '{0:0>10}'.format(x) creates a string that has length at least 10. if what you pass as parameter has length less than 10 it will left-fill it with 0s.e.g. if you have value of
1 in Col1, it will become '0000000001'
RE: Lamda function explanation - mrcool4 - Jul-04-2018
(Jul-04-2018, 10:10 AM)buran Wrote:lambda x: '{0:0>10}'.format(x)creates a string that has length at least 10. if what you pass as parameter has length less than 10 it will left-fill it with 0s.
e.g. if you have value of1in Col1, it will become'0000000001'
Thanks Mate. How does the following code {0:0>10} actually work? Is there any documentation on this syntax?
RE: Lamda function explanation - buran - Jul-04-2018
(Jul-04-2018, 10:15 AM)mrcool4 Wrote: Is there any documentation on this syntax?https://docs.python.org/3/library/string.html#format-string-syntax
Format Specification Mini-Language can be used not only with
str.format() but with f-strings in 3.6+ too
RE: Lamda function explanation - mrcool4 - Jul-04-2018
(Jul-04-2018, 10:22 AM)buran Wrote:(Jul-04-2018, 10:15 AM)mrcool4 Wrote: Is there any documentation on this syntax?https://docs.python.org/3/library/string.html#format-string-syntax
Format Specification Mini-Language can be used not only withstr.format()but with f-strings in 3.6+ too
Thank you..
