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Naming returned columns in Pandas aggregate function? [duplicate]

... is done with tidyverse's summarize in R), but a work-around in pandas for now is to create the new columns with desired names via assign before doing the aggregation: data.assign( f=data['column1'], mean=data['column2'], std=data['column2'] ).groupby('Country').agg(dict(f=sum, mean=np....
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Flags to enable thorough and verbose g++ warnings

...re present: I include -Wno-unused because I often have variables that I know I will use later, but do not yet have the functionality written for. Removing warnings about that allows me to write in my preferred style of occasionally deferring the implementation of things. It is useful to turn that ...
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What special characters must be escaped in regular expressions?

...emember just to escape everywhere than a few exceptions. Power users will know what's up, if they want to avoid a few backslashes. Anyway, I updated my answer with a few clarifications that hopefully address some of this stuff. – Beejor Mar 7 '17 at 3:15 ...
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Should I use PATCH or PUT in my REST API?

...ails of an existing activation. Since a group has only one activation, we know what activation-resource we are referring to. PUT /groups/{group id}/activation Inserts-or-replaces the old activation. Since a group has only one activation, we know what activation-resource we are referring to. DELETE /...
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Good MapReduce examples [closed]

... -> (C D) (C D) -> (A B E) (C E) -> (B D) (D E) -> (B C) Now when D visits B's profile, we can quickly look up (B D) and see that they have three friends in common, (A C E). share | ...
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How to create a new database after initally installing oracle database 11g Express Edition?

...CT, RESOURCE, DBA TO myschema; SQL> GRANT ALL PRIVILEGES TO myschema; Now you can connect via Oracle SQL Developer and create your tables. share | improve this answer | ...
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Fat models and skinny controllers sounds like creating God models [closed]

...(I kinda elaborated on it in a different post) and the community only just now has begun addressing the fallout. You could look at DataMapper2 development as the first major step. Some theory People giving that advice seem to be afflicted by a quite common misconception. So let me begin by clearing...
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“PKIX path building failed” and “unable to find valid certification path to requested target”

...gt; "Export" and save in format "Der-encoded binary, single certificate". Now you have file with keystore and you have to add it to your JVM. Determine location of cacerts files, eg. C:\Program Files (x86)\Java\jre1.6.0_22\lib\security\cacerts. Next import the example.cer file into cacerts in comm...
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How do I load an org.w3c.dom.Document from XML in a string?

... I realize now that I shouldn't just copy-and-paste the accepted answer but rather read through. – Vitaly Sazanovich Nov 13 '13 at 17:45 ...
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How to customize user profile when using django-allauth

... @pennsesr's answer has now been edited to use signup instead of save. – Flimm Sep 1 '17 at 15:29 add a comment ...