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Mean per group in a data.frame [duplicate]
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A third great alternative is using the package data.table, which also has the class data.frame,...
Global and local variables in R
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edited Jun 5 '12 at 20:44
answered Jun 5 '12 at 20:20
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Simple regular expression for a decimal with a precision of 2
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To include an optional minus sign and to disallow numbers like 015 (which can be mistaken for o...
Multiple github accounts on the same computer?
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edited Jun 20 '16 at 21:24
answered Dec 10 '14 at 17:25
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Convert decimal to binary in python [duplicate]
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answered Aug 20 '10 at 4:17
aaronasterlingaaronasterling
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Resetting a multi-stage form with jQuery
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updated on March 2012.
So, two years after I originally answered this question I come back to see that it has pretty much turned into a big mess. I feel it's about time I come back to it and make my answer truly correct since it is the most u...
How to check if a specific key is present in a hash or not?
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– Akash Agarwal
Mar 22 '17 at 20:10
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Java FileReader encoding issue
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– Stijn de Witt
Nov 20 '15 at 16:02
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how to permit an array with strong parameters
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– sameers
Nov 20 '13 at 0:05
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if category_ids is not an array (e.g. a stri...
How do Mockito matchers work?
...-to-right before invoking a method:
when(foo.quux(anyInt(), and(gt(10), lt(20)))).thenReturn(true);
[6] [5] [1] [4] [2] [3]
This will:
Add anyInt() to the stack.
Add gt(10) to the stack.
Add lt(20) to the stack.
Remove gt(10) and lt(20) and add and(gt(10), lt(20)).
Call foo.quux(0,...