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“On-line” (iterator) algorithms for estimating statistical median, mode, skewness, kurtosis?

...r-moment statistics. Median Median is tough without sorted data. If you know, how many data points you have, in theory you only have to partially sort, e.g. by using a selection algorithm. However, that doesn't help too much with billions of values. I would suggest using frequency counts, see the ...
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How to override the copy/deepcopy operations for a Python object?

...se where pickling and copying need to be different. In fact, I don't even know why copy tries to use the pickling protocol by default. Copying is for in-memory manipulation, pickling is for cross-epoch persistence; they are completely different things that bear little relation to each other. ...
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invalid multibyte char (US-ASCII) with Rails and Ruby 1.9

...ust a command-line tool, not a project dependency. – Nowaker Mar 6 '14 at 19:24 add a comment  |  ...
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When should you use a class vs a struct in C++?

... Now that it is several years later and C++11 is supported by all the major compilers, Lambdas make this even more concise. – user439793 Aug 14 '14 at 1:07 ...
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How do I get the entity that represents the current user in Symfony2?

I am using the Symfony security setup. Everything works fine, but I don't know how to do one important thing: 6 Answers ...
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Difference between single and double quotes in Bash

... For anyone who doesn't know what "interpolate" means: en.wikipedia.org/wiki/String_interpolation – Kolob Canyon May 10 '18 at 17:57 ...
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Unable to execute dex: method ID not in [0, 0xffff]: 65536

...nt library for GCM, because I am using only gcm service from play service, now it fixed my problem with this. Thanks! to save my time. – Ankit Aug 25 '16 at 10:51 add a commen...
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How to identify unused css definitions

...used css definitions in a project? A bunch of css files were pulled in and now I'm trying to clean things up a bit. 10 Answ...
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git replace local version with remote version

... This is the safest solution: git stash Now you can do whatever you want without fear of conflicts. For instance: git checkout origin/master If you want to include the remote changes in the master branch you can do: git reset --hard origin/master This will m...
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How to flatten nested objects with linq expression

...is code sample may answer the question, it lacks explanation. As it stands now, it adds no value, and stands the change of being downvoted / deleted. Please add some explanation what is does and why it is a solution for the problem of the OP. – oɔɯǝɹ Feb 2 ...