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Combine two columns of text in pandas dataframe
I have a 20 x 4000 dataframe in Python using pandas. Two of these columns are named Year and quarter . I'd like to create a variable called period that makes Year = 2000 and quarter= q2 into 2000q2 .
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Interview question: Check if one string is a rotation of other string [closed]
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First make sure s1 and s2 are of the same length. Then check to see if s2 is a substring of s1 concatenated with s1:
algorithm checkRotation(string s1, string s2)
if( len(s1) != len(s2))
return false
if( substring(s2,concat(s1,s1))
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Typical AngularJS workflow and project structure (with Python Flask)
...ke? Do people start with developing a client-side application in AngularJS and then hooking up the back-end to it?
6 Answer...
How to recover a dropped stash in Git?
I frequently use git stash and git stash pop to save and restore changes in my working tree. Yesterday I had some changes in my working tree that I had stashed and popped, and then I made more changes to my working tree. I'd like to go back and review yesterday's stashed changes, but git stash ...
How to create a temporary directory and get the path / file name in Python
how to create a temporary directory and get the path / file name in python
5 Answers
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Setting up connection string in ASP.NET to SQL SERVER
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I wonder how many people have copied and pasted that line... :-) I think this is the 30th time I have been to this question.... maybe I should just learn it by heart.
– Ayo Adesina
Jan 26 '15 at 15:28
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cd into directory without having permission
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Enter super user mode, and cd into the directory that you are not permissioned to go into. Sudo requires administrator password.
sudo su
cd directory
share
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How to empty a redis database?
I've been playing with redis (and add some fun with it) during the last fews days and I'd like to know if there is a way to empty the db (remove the sets, the existing key....) easily.
During my tests, I created several sets with a lot of members, even created sets that I do not remember the name ...
Excluding directories in os.walk
I'm writing a script that descends into a directory tree (using os.walk()) and then visits each file matching a certain file extension. However, since some of the directory trees that my tool will be used on also contain sub directories that in turn contain a LOT of useless (for the purpose of thi...
Accessing a class's constants
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Always mix up :: and . ;)
– Nick
May 1 '17 at 22:17
Things a...