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Script parameters in Bash
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125
The arguments that you provide to a bashscript will appear in the variables $1 and $2 and $3 w...
Appending an element to the end of a list in Scala
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List(1,2,3) :+ 4
Results in List[Int] = List(1, 2, 3, 4)
Note that this operation has a complexity of O(n). If you need this operation frequently, or for long lists, consider using another data type (e.g. a ListBuffer).
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Unique combination of all elements from two (or more) vectors
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141
this maybe what you are after
> expand.grid(a,b)
Var1 Var2
1 ABC 2012-05-01
2 ...
How to get a substring of text?
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edited Aug 17 '12 at 10:25
answered May 31 '11 at 8:14
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format statement in a string resource file
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271
You do not need to use formatted="false" in your XML. You just need to use fully qualified stri...
How to get thread id from a thread pool?
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answered Jul 20 '10 at 20:59
skaffmanskaffman
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How to manually install an artifact in Maven 2?
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147
You need to indicate the groupId, the artifactId and the version for your artifact:
mvn insta...
Get column index from column name in python pandas
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Sure, you can use .get_loc():
In [45]: df = DataFrame({"pear": [1,2,3], "apple": [2,3,4], "orange": [3,4,5]})
In [46]: df.columns
Out[46]: Index([apple, orange, pear], dtype=object)
In [47]: df.columns.get_loc("pear")
Out[47]: 2
although to be honest I don't often need this myself. U...
How do I convert a float number to a whole number in JavaScript?
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15 Answers
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Asterisk in function call
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182
* is the "splat" operator: It takes a list as input, and expands it into actual positional arg...