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“On-line” (iterator) algorithms for estimating statistical median, mode, skewness, kurtosis?
... from your set (e.g. that you don't introduce a bias by picking the first 100'000 values). The same approach can also be used for estimating mode and median for the normal case (for both the sample mean is an estimator).
Further comments
All the algorithms above can be run in parallel (including m...
What is a “Stub”?
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answered Jan 20 '09 at 21:57
RossRoss
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How to retrieve the first word of the output of a command in bash?
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Awk is a good option if you have to deal with trailing whitespace because it'll take care of it...
How to rollback just one step using rake db:migrate
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answered Dec 4 '10 at 9:43
rwilliamsrwilliams
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Android onCreate or onStartCommand for starting service
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answered Jan 6 '13 at 14:00
David WasserDavid Wasser
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What is so special about Generic.xaml?
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answered Aug 5 '09 at 10:15
Phil DevaneyPhil Devaney
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How do I get the first n characters of a string without checking the size or going out of bounds?
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Here's a neat solution:
String upToNCharacters = s.substring(0, Math.min(s.length(), n));
Opinion: while this solution is "neat", I think it is actually less readable than a solution that uses if / else in the obvious way. If the reader hasn't seen this trick, he/she has to think ...
how do you push only some of your local git commits?
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edited Mar 3 '09 at 17:25
answered Mar 2 '09 at 23:31
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Convert datetime object to a String of date only in Python
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You can use strftime to help you format your date.
E.g.,
import datetime
t = datetime.datetim...
What is a “Bitmap heap scan” in a query plan?
... de BernardyDenis de Bernardy
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