dataframe

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count topics in each cluster and divide by a total number of topics for each student in python
user_174801760
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68
pandas cluster-analysis dataframe python
Create a new variable that prints the first value in a series of column only if the condition is met in R
user_182556300
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2
2
77
data-wrangling dataframe r loops
Convert data frame to a list, with function from apply family
user_160100050
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2
5
59
apply dataframe r list
How to replace all the non-first values of columns with NaN based on date?
user_176336640
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1
1
49
pandas dataframe python
datatable: process 2 frames
user_11028350
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2
2
91
py-datatable pandas dataframe python-3.x python
Python - how to add another "column" to numpy ndarray
user_173215430
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1
1
34
dataframe numpy python
Creating a new Dataframe based on rows with certain values and removing the rows from the original Dataframe
user_143880900
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2
2
92
pandas dataframe python
How to save a dataframe and an array to a new dataframe with new column names in python
user_185878580
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1
1
40
pandas dataframe numpy arrays python
Creating a new table with a column that calculates a value from 2 different variables from the first table in R
user_131972110
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1
3
42
dataframe r
Take the letter that comes first in the alphabet (in R)
user_13068920
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1
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50
dataframe character r
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