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How do I include a newline character in a string in Delphi?
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answered Oct 31 '08 at 21:21
Jim McKeethJim McKeeth
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Mean per group in a data.frame [duplicate]
..., mean)
Group.1 Rate1 Rate2
1 Aira 16.33333 47.00000
2 Ben 31.33333 50.33333
3 Cat 44.66667 54.00000
Here we aggregate columns 3 and 4 of data.frame d, grouping by d$Name, and applying the mean function.
Or, using a formula interface:
aggregate(. ~ Name, d[-2], mean)
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Does Haskell require a garbage collector?
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answered Mar 31 '12 at 6:50
reinerpreinerp
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What is Weak Head Normal Form?
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answered Jul 31 '11 at 11:59
hammarhammar
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Performing Breadth First Search recursively
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answered Mar 31 '10 at 2:32
TanzelaxTanzelax
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Python element-wise tuple operations like sum
...c solution.
– Matthew Schinckel
Jan 31 '09 at 1:34
3
Except that map() is semi-deprecated. See a...
Java: random long number in 0
...n) == n) // i.e., n is a power of 2
return (int)((n * (long)next(31)) >> 31);
int bits, val;
do {
bits = next(31);
val = bits % n;
} while(bits - val + (n-1) < 0);
return val;
}
So we may modify this to perform nextLong:
long nextLong(Ran...
to remove first and last element in array
...amp;last', to: bin});
– iConnor
Aug 31 '13 at 8:56
3
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Do a “git export” (like “svn export”)?
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31 Answers
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How can I force a long string without any blank to be wrapped?
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answered Jan 31 '09 at 16:53
heeenheeen
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