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Apply pandas function to column to create multiple new columns?
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Building off of user1827356 's answer, you can do the assignment in one pass using df.merge:
df.merge(df.textcol.apply(lambda s: pd.Series({'feature1':s+1, 'feature2':s-1})),
left_index=True, right_index=True)
textcol feature1 featur...
How do I validate a date string format in python?
... line 1, in <module>
validate('2003-12-32')
File "<pyshell#18>", line 5, in validate
raise ValueError("Incorrect data format, should be YYYY-MM-DD")
ValueError: Incorrect data format, should be YYYY-MM-DD
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Why is it OK to return a 'vector' from a function?
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Can we guarantee it will not die?
As long there is no reference returned, it's perfectly fi...
How to serialize a lambda?
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Java 8 introduces the possibility to cast an object to an intersection of types by adding multiple bounds. In the case of serialization, it is therefore possible to write:
Runnable r = (Runnable & Serializable)() -> System...
JPanel Padding in Java
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Nateowami
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answered Mar 16 '11 at 16:33
Julien VermillardJulien Vermilla...
List all environment variables from the command line
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8 Answers
8
Active
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How can I use vim to convert my file to utf8?
I have a text file. I've been told to make it UTF8. How can I do that with Vim?
2 Answers
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Convert String[] to comma separated string in java
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edited Sep 18 '14 at 10:17
Sam Harwell
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How to set the JDK Netbeans runs on?
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NB: As of Netbeans 8 there is also a netbeans.conf in C:\Users\You\AppData\Roaming\NetBeans\8.0\etc\netbeans.conf.
– OldCurmudgeon
Jul 17 '14 at 8:47
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Return first match of Ruby regex
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answered Feb 6 '09 at 8:53
PresidentenPresidenten
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