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Cleaning `Inf` values from an R dataframe
...call(cbind,lapply(dat, is.infinite)))
# user system elapsed
# 1.22 0.38 1.60
# data.table (@mnel)
system.time(invisible(lapply(names(DT),function(.name) set(DT, which(is.infinite(DT[[.name]])), j = .name,value =NA))))
# user system elapsed
# 0.29 0.02 0.31
data.table is the qu...
Javascript: negative lookbehind equivalent?
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answered Mar 13 '09 at 13:38
Jason SJason S
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How can I multiply and divide using only bit shifting and adding?
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answered May 5 '10 at 19:38
Kelly S. FrenchKelly S. French
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How can I fix the Microsoft Visual Studio error: “package did not load correctly”?
...it.
– MetalPhoenix
Mar 22 '16 at 13:38
3
In my case devenv.exe /resetuserdata helped. Note: it re...
Favorite Django Tips & Features?
...re
edited Aug 25 '10 at 6:38
answered Feb 15 '09 at 10:15
H...
How to strip all whitespace from string
...-m timeit '"".join(" \t foo \n bar ".split())'
1000000 loops, best of 3: 1.38 usec per loop
$ python -m timeit -s 'import re' 're.sub(r"\s+", "", " \t foo \n bar ")'
100000 loops, best of 3: 15.6 usec per loop
Note the regex is cached, so it's not as slow as you'd imagine. Compiling it beforehand...
C# pattern to prevent an event handler hooked twice [duplicate]
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38
I've tested each solution and the best one (considering performance) is:
private EventHandler ...
How to debug PDO database queries?
... of this.
– Salman
Feb 11 '13 at 14:38
1
@webbiedave - oh, wow! Your linked answer implies that m...
How do you access a website running on localhost from iPhone browser
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edited Mar 20 '14 at 19:38
answered Feb 3 '14 at 5:15
Fat...
Properties file in python (similar to Java Properties)
...819788/15274
– pi.
Apr 16 '15 at 16:38
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