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Converting a column within pandas dataframe from int to string
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Out[19]:
0 0
1 2
2 4
3 6
4 8
Name: A, dtype: object
In [20]: df['A'].apply(str)[0]
Out[20]: '0'
Don't forget to assign the result back:
df['A'] = df['A'].apply(str)
Convert the whole frame
In [21]: df.applymap(str)
Out[21]:
A B
0 0 1
1 2 3
2 4 5
3 6 7
4 8 9
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How do I rename all files to lowercase?
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answered Oct 16 '11 at 20:39
wjlwjl
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How to get a substring of text?
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207
Use String#slice, also aliased as [].
a = "hello there"
a[1] #=> "e"
a[1...
Do you need to use path.join in node.js?
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answered Feb 27 '14 at 20:59
dronusdronus
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format date with moment.js
...ponseDate = moment(formatDate).format('DD/MM/YYYY');
My output is "13/05/2014"
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Selecting with complex criteria from pandas.DataFrame
... B C
0 9 40 300
1 9 70 700
2 5 70 900
3 8 80 900
4 7 50 200
5 9 30 900
6 2 80 700
7 2 80 400
8 5 80 300
9 7 70 800
We can apply column operations and get boolean Series objects:
>>> df["B"] > 50
0 False
1 True
2 True
3 True
4 False
5...
Git commit date
...t=%ct <commit>
– xiaoweiz
Oct 20 '16 at 13:37
2
If you want another date format, you can us...
Referencing another schema in Mongoose
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Is there a way to zoom the Visual Studio text editor with a keyboard shortcut?
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edited Jun 22 '10 at 20:36
Michael Mrozek
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Gradient of n colors ranging from color 1 and color 2
...ing: colors().
– jadki
Oct 9 '18 at 20:54
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