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Error: could not find function … in R
...n code created for a newer version. Newly added functions (eg hasName in R 3.4.0) won't be found then. If you use an older R version and want to use a newer function, you can use the package backports to make such functions available. You also find a list of functions that need to be backported on t...
How do I count unique values inside a list
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13 Answers
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Combining two Series into a DataFrame in pandas
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I think concat is a nice way to do this. If they are present it uses the name attributes of the...
Nested attributes unpermitted parameters
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edited Mar 25 '16 at 7:39
illusionist
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answered...
How do you commit code as a different user?
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3 Answers
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Overriding a Rails default_scope
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edited May 23 '17 at 12:10
Community♦
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answered Dec 2 '09 at 16:50
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How does one output bold text in Bash?
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gsamaras
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answered May 27 '10 at 20:42
psmearspsmears
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How to find out element position in slice?
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I agree with Evan. Additional comment: it's more idiomatic to return just an int where -1 indicates "not found" (like bytes.IndexByte)
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Explicitly select items from a list or tuple
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list( myBigList[i] for i in [87, 342, 217, 998, 500] )
I compared the answers with python 2.5.2:
19.7 usec: [ myBigList[i] for i in [87, 342, 217, 998, 500] ]
20.6 usec: map(myBigList.__getitem__, (87, 342, 217, 998, 500))
22.7 usec: itemgetter(87, 342...