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Pandas groupby: How to get a union of strings

... 1 0.749065 This 1 2 0.301084 is 2 3 0.463468 a 3 4 0.643961 random 4 1 0.866521 string 5 2 0.120737 ! In [6]: df.dtypes Out[6]: A int64 B float64 C object dtype: object When you apply your own function, there is not automatic exclusions of non-numeri...
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What does the X-SourceFiles header do?

... LeviLevi 32k33 gold badges8282 silver badges8686 bronze badges ...
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Release generating .pdb files, why?

...uilds. "The /deterministic flag causes the compiler to emit the exact same EXE / DLL, byte for byte, when given the same inputs." What this means is a project origionally compiled with this flag, can be recompiled to the exact same binary, as long as the code you are compiling is the same. A longer...
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Android studio - Failed to find target android-18

...t files. Fixed by: export ANDROID_HOME= pathtobundle/adt-bundle-linux-x86_64-20130729/sdk If you don't have the ADT installed, and just want the SDK, it seems like a good solution is to install everything and then point Android Studio to the just the packaged SDK. cd pathtobundle wget http://dl.g...
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How to change an input button image using CSS?

.... – eyelidlessness Oct 12 '08 at 16:32 3 re to be more compatible / <button> can buy you ot...
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How do I migrate an SVN repository with history to a new Git repository?

...he URL string must not include /trunk, /tag or /branches. Note that after executing this command it very often looks like the operation is "hanging/freezed", and it's quite normal that it can be stuck for a long time after initializing the new repository. Eventually you will then see log messages w...
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Is there a way to make R beep/play a sound at the end of a script?

..." sound. – Benjamin Nov 12 '15 at 0:32 6 Doesn't work for me on Windows 7, x64, R 3.2.2. The beep...
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Click button copy to clipboard using jQuery

...zohan reported in the comments below, there is some strange issue with the 64-bit version of Google Chrome in some cases (running the file locally). This issue seems to be fixed with the non-jQuery solution above. Madzohan tried in Safari and the solution worked but using document.execCommand('Selec...
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dropping infinite values from dataframes in pandas?

...00000 1.000000 inf df.sum() A inf B inf C inf dtype: float64 df.apply(lambda s: s[np.isfinite(s)].dropna()).sum() A 2 B 2 C 2 dtype: float64 share | improve this answer ...
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What is a reasonable length limit on person “Name” fields?

...e Marguerite LaFleche" (39-bytes-length). – user1154664 Nov 3 '12 at 20:51 ...