data.table

data.table

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Fast way to split comma-separated strings into (sparse) boolean matrix in R
Tom Wenseleers0
•
3
4
83
dplyr data.table r
Subsetting a data.table using logical function by calling its string name
parterre0
•
3
2
49
data.table r
Calculate time intervals without any overlap
fschier0
•
2
1
40
lubridate data.table r
Accessing to the first `.SD` in `dt[, .SD[.SD[<something else>], by = b], by = a]`
Our0
•
1
0
81
data.table r
Find the mid point where the sum of upper half and lower half of data.table is almost equal
userG76O0
•
1
1
31
data.table r
Convert outliers and NA in a dataframe to NaN
Wilson Souza0
•
1
1
35
nan dplyr data.table dataframe r
R data.table - dividing columns in character vector by columns in another character vector
drj31220
•
1
1
31
data.table r
when dplyr/accross function use for data.table, the speed is slow
anderwyang0
•
0
1
39
across dplyr data.table
In R data.table, how to replace NA value more efficiently
anderwyang0
•
0
0
40
data.table r
Join two dataframes by the most closest datetime
Wilson Souza0
•
0
1
58
lubridate dplyr merge data.table r
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