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Calculate the median of a billion numbers
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25 Answers
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How to get unique device hardware id in Android? [duplicate]
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answered Jun 1 '13 at 5:39
RaghunandanRaghunandan
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Explain “claims-based authentication” to a 5-year-old
Well, not exactly to a 5-year-old, but please avoid buzzword and enterprisespeak if possible.
6 Answers
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Wrap long lines in Python [duplicate]
...nt(('{0} Here is a really long '
'sentence with {1}').format(3, 5))
Adjacent string literals are concatenated at compile time, just as in C. http://docs.python.org/reference/lexical_analysis.html#string-literal-concatenation is a good place to start for more info.
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Call apply-like function on each row of dataframe with multiple arguments from each row
...ubset of the original data.
dat <- data.frame(x=c(1,2), y=c(3,4), z=c(5,6))
apply(dat[,c('x','z')], 1, function(x) sum(x) )
or if your function is just sum use the vectorized version:
rowSums(dat[,c('x','z')])
[1] 6 8
If you want to use testFunc
testFunc <- function(a, b) a + b
appl...
Flatten nested dictionaries, compressing keys
...return dict(items)
>>> flatten({'a': 1, 'c': {'a': 2, 'b': {'x': 5, 'y' : 10}}, 'd': [1, 2, 3]})
{'a': 1, 'c_a': 2, 'c_b_x': 5, 'd': [1, 2, 3], 'c_b_y': 10}
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How to write log base(2) in c/c++
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Joey
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answered Jun 17 '10 at 19:27
Adam CrumeAdam C...
The smallest difference between 2 Angles
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edited Oct 25 '14 at 10:51
answered Oct 23 '11 at 21:47
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Linux equivalent of the Mac OS X “open” command [closed]
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answered Nov 5 '08 at 5:28
number5number5
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How do I achieve the theoretical maximum of 4 FLOPs per cycle?
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