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How do I resolve configuration errors with Nant 0.91?
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answered Dec 22 '11 at 14:17
Peter BernierPeter Bernier
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PatternSyntaxException: Illegal Repetition when using regex in Java
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edited Sep 24 '18 at 23:27
Swagga Ting
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answered Jan ...
Does Ruby regular expression have a not match operator like “!~” in Perl?
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answered Dec 7 '12 at 8:04
Konrad RudolphKonrad Rudolph
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How do I make a matrix from a list of vectors in R?
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One option is to use do.call():
> do.call(rbind, a)
[,1] [,2] [,3] [,4] [,5] [,6]
[...
Tricky Google interview question
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124
Dijkstra derives an eloquent solution in "A Discipline of Programming". He attributes the proble...
How can I loop through a List and grab each item?
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4 Answers
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Active
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How to add a second css class with a conditional value in razor MVC 4
...soft has created some automagic rendering of html attributes in razor MVC4, it took me quite some time to find out how to render a second css class on an element, based on a conditional razor expression. I would like to share it with you.
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Python: Select subset from list based on index set
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kennytmkennytm
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Replace all 0 values to NA
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edited Aug 19 '18 at 20:43
answered Jun 14 '12 at 16:09
J...
Convert column classes in data.table
...tor w/ 2 levels "A","B": 1 1 1 1 1 2 2 2 2 2
$ Quarter: chr "1" "2" "3" "4" ...
$ value : num -0.838 0.146 -1.059 -1.197 0.282 ...
Using lapply and as.character:
dtnew <- dt[, lapply(.SD, as.character), by=ID]
str(dtnew)
Classes ‘data.table’ and 'data.frame': 10 obs. of 3 variabl...