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Android: set view style programmatically
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13 Answers
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How do you force a makefile to rebuild a target
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23
You could declare one or more of your targets to be phony.
A phony target is one that is not...
linux tee is not working with python?
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VorVor
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Maintain git repo inside another git repo
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mipadimipadi
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Change one value based on another value in pandas
...for you.
import pandas
df = pandas.read_csv("test.csv")
df.loc[df.ID == 103, 'FirstName'] = "Matt"
df.loc[df.ID == 103, 'LastName'] = "Jones"
As mentioned in the comments, you can also do the assignment to both columns in one shot:
df.loc[df.ID == 103, ['FirstName', 'LastName']] = 'Matt', 'Jones...
In which situations do we need to write the __autoreleasing ownership qualifier under ARC?
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3 Answers
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cancelling queued performSelector:afterDelay calls
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Tim
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answered Nov 27 '09 at 2:40
stefanBstefanB
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python pandas: Remove duplicates by columns A, keeping the row with the highest value in column B
...]: df.drop_duplicates(subset='A', keep="last")
Out[10]:
A B
1 1 20
3 2 40
4 3 10
You can do also something like:
In [12]: df.groupby('A', group_keys=False).apply(lambda x: x.loc[x.B.idxmax()])
Out[12]:
A B
A
1 1 20
2 2 40
3 3 10
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When would you use .git/info/exclude instead of .gitignore to exclude files?
...ore in your comment above. My understanding is that ignore rules can be at 3 levels - $PROJECT/.git/info/exclude for (project, user) specific ignore rules, $PROJECT/<any number of directories>/.gitignore which is for project specific ignore rules across any user anywhere (when checked in), ~/...
Select between two dates with Django
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234
Use the __range operator:
...filter(current_issue__isnull=True, created_at__range=(start_date,...