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How to randomize (or permute) a dataframe rowwise and columnwise?
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answered Jul 16 '12 at 11:35
pmspms
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How to tell Jackson to ignore a field during serialization if its value is null?
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edited Mar 1 '18 at 16:40
bakoyaro
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Connecting to remote URL which requires authentication using Java
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Daniel
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answered Feb 28 '11 at 1:42
Wanderson SantosWa...
AES vs Blowfish for file encryption
...t was probably the most conservative design. In particular, they figured a 16-round version would be sufficient -- so they doubled that to 32 rounds. The best attack currently known is effective against only 11 rounds. If the original question hadn't specifically restricted the choices to AES and Bl...
How to save and restore multiple different sessions in Vim?
... BenjBenj
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Where do “pure virtual function call” crashes come from?
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edited Dec 16 '15 at 6:30
Destructor
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C++: what regex library should I use? [closed]
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edited Jun 8 '16 at 17:45
Mark Lakata
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Android Studio says “cannot resolve symbol” but project compiles
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doydoydoydoy
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Relative frequencies / proportions with dplyr
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answered Aug 8 '16 at 18:31
MatifouMatifou
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How do I create an Excel (.XLS and .XLSX) file in C# without installing Microsoft Office?
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– Chris Marisic
Aug 12 '15 at 16:10
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@Paul Chernoch: We populate large Excel sheets with ...