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JPA or JDBC, how are they different?
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answered Aug 9 '12 at 10:49
Mark DMark D
4,13833 gold badges2121 silver badges3131 bronze badges
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R - Concatenate two dataframes?
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a b c
1 0 3 6
2 1 4 7
3 2 5 8
> b <- data.frame(a=c(9,10,11), c=c(12,13,14))
> b
a c
1 9 12
2 10 13
3 11 14
> b$b <- NA
> b
a c b
1 9 12 NA
2 10 13 NA
3 11 14 NA
> new <- rbind(a,b)
> new
a b c
1 0 3 6
2 1 4 7
3 2 5 8
4 9 NA 12
5 10 NA 13
6 11 ...
You have already activated rake 0.9.0, but your Gemfile requires rake 0.8.7
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edited Jul 12 '12 at 21:24
jackr
1,34611 gold badge1313 silver badges2929 bronze badges
a...
How do I include negative decimal numbers in this regular expression?
...th positive values, but I want it to also allow negative values e.g. -10, -125.5 etc.
14 Answers
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efficient circular buffer?
...or i in xrange(20):
... d.append(i)
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>>> d
deque([10, 11, 12, 13, 14, 15, 16, 17, 18, 19], maxlen=10)
There is a recipe in the docs for deque that is similar to what you want. My assertion that it's the most efficient rests entirely on the fact that it's implemented in C by an inc...
do N times (declarative syntax)
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vinyllvinyll
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How to allow only numeric (0-9) in HTML inputbox using jQuery?
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1280
Note: This is an updated answer. Comments below refer to an old version which messed around w...
sed: print only matching group
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12
great for the entire group, though sed is needed for individual groups
– jozxyqk
Aug 26 '14 at 9:04
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Getting key with maximum value in dictionary?
...y: stats[key]))
– Lucretiel
Dec 16 '12 at 7:22
25
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Green Bars in Visual Studio 2010
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered May 12 '10 at 22:53
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