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New posts in data.table
Replace Inf in R data.table / Show number of Inf in colums
Sep 16, 2025
r
data.table
infinite
na
How to translate data.table code to collapse
Sep 16, 2025
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data.table
r-collapse
data.table: group-by, sum, name new column, and slice columns in one step
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group-by
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Date difference between end date to start date
Sep 14, 2025
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how to avoid reading dates as IDate in fread
Sep 15, 2025
r
data.table
Create lagged columns using data.table
Sep 14, 2025
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data.table
How to get the highest values for two unrelated columns?
Sep 13, 2025
r
data.table
Remove NA in a data.table in R
Sep 13, 2025
r
data.table
na
missing-data
R data.table to list of rows; better ways?
Sep 12, 2025
r
list
data.table
replicate `expand.grid()` behavior with data.frames using tidyr/data.table
Sep 09, 2025
r
dataframe
data.table
tidyverse
combinations
Rolling weighted average in R (multiple observations)
Sep 10, 2025
r
dplyr
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data.table fread and ISO8601
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r
datetime
data.table
fread
posixct
How to merge two data.tables on the closest value, but also by group in R?
Sep 09, 2025
r
data.table
Using count(), aggregate(), data.table () or dplyr() to summarise the data (mean, standard deviation)
Sep 09, 2025
r
dplyr
data.table
aggregate-functions
mean
Create a Session ID from User ID and time differences
Sep 08, 2025
r
data.table
data.table: create multiple columns with lapply and .SD [duplicate]
Sep 07, 2025
r
data.table
Efficiently counting occurrences of a word list in a column using R
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r
parallel-processing
data.table
How to save a csv as bzip2 in R, either within fwrite or after saving the csv using fwrite
Sep 07, 2025
r
data.table
fwrite
bzip2
bzip
Find closest value above current row that meets condition and apply function for each group
Sep 07, 2025
r
data.table
tidyverse
R data.table struggling with conditional subsetting when column name is predefined elsewhere
Sep 07, 2025
r
data.table
subset
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