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New posts in dataframe
pandas: aggregate a column of list into one list
Feb 12, 2026
python-3.x
pandas
dataframe
aggregate
Replace string column endwiths specific substrings under condition of another column with Pandas
Feb 11, 2026
python-3.x
pandas
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making the distinction between missing value types (non-response vs skip patterns)
Feb 12, 2026
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dataframe
create a new variable that is the multiplication of an existing variable by a number and that meets a condition
Feb 11, 2026
r
dataframe
Pandas: Efficiently subset DataFrame based on strings containing certain values
Feb 12, 2026
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pandas
dataframe
passing optional dataframe parameter in python
Feb 11, 2026
python
pandas
dataframe
Using Lambda with function that takes argument from different columns of dataframe
Feb 12, 2026
python
pandas
dataframe
lambda
fill a column in my data frame conditional on other column, with values from third column
Feb 10, 2026
r
dataframe
conditional-statements
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Split a data frame into six equal parts based on number of rows without knowing the number of rows - pandas
Feb 09, 2026
python
pandas
dataframe
Python: Counting specific occurrences in dataframe by group
Feb 08, 2026
python
pandas
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Save multiple dataframes to the same file, one after the other
Feb 09, 2026
python
pandas
dataframe
How can I find the first row after a number of duplicated rows?
Feb 09, 2026
python
pandas
dataframe
Modifying the values of one column adding a word after the original value [duplicate]
Feb 08, 2026
python
pandas
dataframe
Loading data from RData files into a single data table
Feb 09, 2026
r
dataframe
data.table
rdata
Polars and Pandas DataFrame consume almost same memory. Where is the advantage of Polars?
Feb 09, 2026
python
pandas
dataframe
python-polars
How to convert a matrix looking dataframe with row and column labels to a regular pandas dataframe?
Feb 07, 2026
pandas
dataframe
matrix
How to assign to column with non-string "name" or index?
Feb 08, 2026
python
pandas
dataframe
Slice DataFrame using indices from other columns
Feb 07, 2026
python
pandas
python-2.7
dataframe
Get previous week value Python dataframe
Feb 09, 2026
python
pandas
dataframe
Using DataFrame.lookup to get rows where columns names are a subset of a string
Feb 07, 2026
python
python-3.x
pandas
dataframe
filter
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