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How to find the kth smallest element in the union of two sorted arrays?
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17 Answers
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What is the JavaScript >>> operator and how do you use it?
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213
It doesn't just convert non-Numbers to Number, it converts them to Numbers that can be expresse...
How do you match only valid roman numerals with a regular expression?
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16 Answers
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Regex group capture in R with multiple capture-groups
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str_match(), from the stringr package, will do this. It returns a character matrix with one co...
Why do Lua arrays(tables) start at 1 instead of 0?
...ionale behind the decision of this part of Lua. Why does indexing start at 1? I have read (as many others did) this great paper . It seems to me a strange corner of a language that is very pleasant to learn and program. Don't get me wrong, Lua is just great but there has to be an explanation somewh...
Remove insignificant trailing zeros from a number?
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15 Answers
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Generate random number between two numbers in JavaScript
Is there a way to generate a random number in a specified range (e.g. from 1 to 6: 1, 2, 3, 4, 5, or 6) in JavaScript?
23 A...
Split (explode) pandas dataframe string entry to separate rows
...bout something like this:
In [55]: pd.concat([Series(row['var2'], row['var1'].split(','))
for _, row in a.iterrows()]).reset_index()
Out[55]:
index 0
0 a 1
1 b 1
2 c 1
3 d 2
4 e 2
5 f 2
Then you just have to rename the columns
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