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How to get the first and last date of the current year?
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18 Answers
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Fastest way to replace NAs in a large data.table
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Cosine Similarity between 2 Number Lists
...te the cosine similarity between two lists , let's say for example list 1 which is dataSetI and list 2 which is dataSetII . I cannot use anything such as numpy or a statistics module. I must use common modules (math, etc) (and the least modules as possible, at that, to reduce time spent).
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How to pretty print nested dictionaries?
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Assign output of a program to a variable using a MS batch file
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One way is:
application arg0 arg1 > temp.txt
set /p VAR=<temp.txt
Another is:
for /f %%i in ('application arg0 arg1') do set VAR=%%i
Note that the first % in %%i is used to escape the % after it and is needed when using the above code in a batch ...
Build tree array from flat array in javascript
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There is an efficient solution if you use a map-lookup. If the parents always come before thei...
What's the difference between “mod” and “remainder”?
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There is a difference between modulus and remainder. For example:
-21 mod 4 is 3 because -21 ...
How can I create a two dimensional array in JavaScript?
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Is there a “not equal” operator in Python?
...ect identities, you can use the keyword is and its negation is not.
e.g.
1 == 1 # -> True
1 != 1 # -> False
[] is [] #-> False (distinct objects)
a = b = []; a is b # -> True (same object)
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