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New posts in dataframe
Calculate difference between consecutive rows per group in dataframe Julia
Sep 22, 2025
dataframe
julia
difference
Python: I have pandas dataframe which has the same column name. How to change one of those?
Sep 22, 2025
python
pandas
dataframe
rename
How can I select n rows preceding an index row in a DataFrame?
Sep 22, 2025
python
pandas
dataframe
Get column name for first occurence of most frequent value in a row
Sep 22, 2025
r
dataframe
frequency
Plot table and display Pandas Dataframe
Sep 21, 2025
python
pandas
dataframe
Replace each row based on the string match and column value
Sep 22, 2025
r
dataframe
data.table
How to save the for loop output as data.frame in R?
Sep 21, 2025
r
for-loop
dataframe
save
How to assign a new descriptive column while concatenating dataframes
Sep 21, 2025
python
pandas
dataframe
merge
concatenation
Group by two column and summarize multiple columns
Sep 21, 2025
r
dataframe
dplyr
tidyverse
'DataFrameGroupBy' object has no attribute 'set_index'
Sep 20, 2025
python
pandas
dataframe
python-3.7
Human-readable hard-coding dataframe in R
Sep 21, 2025
r
dataframe
format
human-readable
Panda time series resample + adjusting values linearly
Sep 21, 2025
python
pandas
dataframe
datetime
pandas-resample
DataFrame from list of multiple dictionaries where keys are index and values is column data
Sep 21, 2025
python
pandas
dataframe
defaultdict
Aggregate 2 subsets of a dataframe - keep original index & use the first subset's values as column headers
Sep 21, 2025
python
pandas
dataframe
group-by
If a df does not have all the cols in another, add them and set all to 0
Sep 21, 2025
r
dataframe
dplyr
in python merge two dataframes with the merge key of one dataframe contained in key of other dataframe
Sep 21, 2025
python
pandas
dataframe
merge
Find the maximum value along with its group ids for each column
Sep 21, 2025
r
dataframe
subset
reshape
fill new column of pandas DataFrame based on if-else of other columns
Sep 20, 2025
python
pandas
numpy
dataframe
Pandas: Pivoting With Duplicate Values
Sep 21, 2025
python
pandas
dataframe
pivot
Merge and update dataframes based on a subset of their columns
Sep 20, 2025
python
pandas
dataframe
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