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Adding new column to existing DataFrame in Python pandas
... a b c d
6 -0.269221 -0.026476 0.997517 1.294385
8 0.917438 0.847941 0.034235 -0.448948
>>> df1['e'] = pd.Series(np.random.randn(sLength), index=df1.index)
>>> df1
a b c d e
6 -0.269221 -0.026476 0.997517 ...
How to deep copy a list?
...
239
E0_copy is not a deep copy. You don't make a deep copy using list() (Both list(...) and testLis...
creating list of objects in Javascript
...
var list = [
{ date: '12/1/2011', reading: 3, id: 20055 },
{ date: '13/1/2011', reading: 5, id: 20053 },
{ date: '14/1/2011', reading: 6, id: 45652 }
];
and then access it:
alert(list[1].date);
...
Converting a column within pandas dataframe from int to string
...hape(5,2),columns=list('AB'))
In [17]: df
Out[17]:
A B
0 0 1
1 2 3
2 4 5
3 6 7
4 8 9
In [18]: df.dtypes
Out[18]:
A int64
B int64
dtype: object
Convert a series
In [19]: df['A'].apply(str)
Out[19]:
0 0
1 2
2 4
3 6
4 8
Name: A, dtype: object
In [20]: df['A...
Any implementation of Ordered Set in Java?
...
answered Jan 3 '12 at 13:08
Chandra SekharChandra Sekhar
14.8k1010 gold badges6666 silver badges8686 bronze badges
...
What's the best way to generate a UML diagram from Python source code? [closed]
...
136
You may have heard of Pylint that helps statically checking Python code. Few people know that i...
What's the best way to inverse sort in scala?
...ur answer!
– schmmd
Oct 19 '11 at 4:38
Except that it does not work. I should never answer when I have no REPL handy. ...
Can I use Twitter Bootstrap and jQuery UI at the same time?
...
13 Answers
13
Active
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Determine Whether Integer Is Between Two Other Integers?
...other integers (e.g. greater than/equal to 10000 and less than/equal to 30000 )?
11 Answers
...