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Converting a column within pandas dataframe from int to string
...es
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'].apply(str)[0]
Out[20]: '0'
Don't forget to assign the result back:
df['A'] = df['A'].apply(str)
Convert the ...
Add new row to dataframe, at specific row-index, not appended?
...2 V3 V4
1 1 6 11 16
2 2 7 12 17
3 1 2 3 4
4 3 8 13 18
5 4 9 14 19
6 5 10 15 20
If speed is less important than clarity, then @Simon's solution works well:
existingDF <- rbind(existingDF[1:r,],newrow,existingDF[-(1:r),])
> existingDF
V1 V2 V3 V4
1 1 6 11 16
2 2 7 12 17
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Visual Studio Editor does not underline errors anymore
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edited Jun 19 '15 at 6:48
Spooky
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Common elements comparison between 2 lists
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answered May 19 '10 at 11:00
SilentGhostSilentGhost
246k5454 gold badges286286 silver badges278278 bronze badges
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Delete the first three rows of a dataframe in pandas
...included.
– bdiamante
Jan 20 '17 at 19:30
Anyone happen to know how to do this in a groupby()? This works but returns ...
What is the difference between NaN and None?
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answered Jul 8 '13 at 19:43
Andy HaydenAndy Hayden
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Insert a row to pandas dataframe
...for Python arrays.
– flow2k
Apr 24 '19 at 2:05
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Android emulator shows nothing except black screen and adb devices shows “device offline”
...ulators.
– muetzenflo
Mar 14 '13 at 19:11
1
thanks! had the same problem for days and couldn't fi...
Finding the average of a list
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edited Nov 13 '19 at 1:30
Boris
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answe...
String.format() to format double in java
...tring.
– Matt Passell
Mar 12 '14 at 19:36
5
Yes, Matt is right. %1, %2 and so on can be used to r...