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New posts in dataframe
Apply a dataframe of boolean values onto another dataframe in R
Sep 16, 2022
r
dataframe
Convert two numpy array to dataframe
Sep 26, 2022
python
arrays
pandas
numpy
dataframe
Transpose DataFrame Without Aggregation in Spark with scala
Sep 02, 2022
scala
apache-spark
dataframe
transpose
dplyr rowwise sum and other functions like max
Sep 22, 2022
r
dataframe
dplyr
rowwise
Syntax to select previous row in pandas after filtering
Sep 19, 2022
python
pandas
dataframe
conditional-statements
Pandas - find specific value in entire dataframe
Sep 05, 2022
python
python-3.x
pandas
dataframe
Summing values in R based on column value with dplyr
Oct 08, 2022
r
dataframe
dplyr
Choose variables based on name (simple regular expression)
Oct 22, 2022
r
dataframe
subset
Merge a lot of data frames in R
Nov 06, 2022
r
merge
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text-files
Select groups based on number of unique / distinct values
Mar 07, 2022
r
dataframe
unique
Returning a data-frame from C to R -
Sep 13, 2022
c
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dataframe
Grouped correlation with dplyr (works only on console)
Oct 14, 2017
r
dataframe
plyr
dplyr
write.xlsx error in Error in .jnew and j.check in R
Nov 04, 2022
r
excel
dataframe
xtable in R: Cannot get rid of row numbers [duplicate]
Sep 24, 2022
r
dataframe
latex
xtable
Convert pandas dataframe to numpy array - which approach to prefer? [duplicate]
Mar 08, 2022
python
arrays
pandas
numpy
dataframe
Subtract values from maximum value within groups
Jan 28, 2022
python
pandas
dataframe
group-by
pandas-groupby
pandas pivot and join in two dataframes
Jul 22, 2022
python
pandas
dataframe
join
pivot
Subset R data frame contingent on the value of duplicate variables
May 21, 2022
r
dataframe
subset
plyr
data.table
Filling data frame with previous row value
Nov 02, 2022
r
dataframe
calculated-columns
Python Pandas: String Contains and Doesn't Contain
Nov 06, 2022
python
pandas
dataframe
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