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Rating Stats for

eddi

Rating
1623.32 (1,012th)

Reputation
42,998 (2,509th)

Page: 1 2 3 4 5 6 7 ... 18

Title	Δ
Conditionally working with variables in data.table	0.00
Flag a row in one column based on past value in another column	0.00
How to create a new column based on other columns in a data.table?	+1.81
Data.table - lapply function within .SD with merge not working	0.00
Number of non-NA records by column, grouped	+2.17
R - data.table not grouping when using with	0.00
data.table version of split and repeat	0.00
Why does the following code trying to alias %>% from magrittr sy...	0.00
How do I tell an R6 class what to do with square brackets?	0.00
Splitting a single column into multiple observation using R	-0.99
How to subset a random value of a variable by group with data.table?	+0.36
Split a data table into hourly totals in R	-2.28
Getting a summary data frame for all the combinations of categories...	-0.22
Subsetting a Data Table using %in%	+0.28
Why does setnames() affect copied tables?	0.00
data.table rolling join within range	0.00
Using zoo's rollsum within data.table on timestamped transactions	+0.36
Populating data from one data.table to another	+1.50
calculating distance between two row in a data.table	0.00
Merge multiple data tables with the same column names	+1.20
Aggregate calculations with and without grouping variable in data.t...	+0.38
Odd POSIXct Function Behavior In R	+0.18
R: enumerating sequences of permutations	0.00
maximum date of multiple dates in R	-2.67
R: Combining identical rows into one (preferably using dplyr/tidyr)	+0.37
apply a function on each row with different arguments	0.00
Select row by level of a factor	-1.14
Why is the default return type of `ceiling` and `floor` numeric?	0.00
Read csv file in R with double quotes	+1.18
How can we do some calculations using last row within a group in da...	-1.44
Compute new column based on values in current and following rows wi...	0.00
data.table to long based on one column of vectors repeat another co...	0.00
Lookup in R using data.table	+0.75
The function of parentheses (round brackets) in R	0.00
Creating dummy variable from list in a data.table in R	+1.78
Creating a data.table using references to pre-existing vectors	0.00
R data.table conditional (min/max) aggregation	0.00
Fill columns using indices	0.00
in R: Setting new Values in a data.table fast	-0.43
Bi-weekly binning with data table	0.00
(Concisely/efficiently) ignoring lone characters when eliminating i...	0.00
Inaccurate value matching in data.table	0.00
Remove row-specific items from list	+0.40
Identify and annotate group wise minimum values using data.table in R	-0.58
Join two data tables to override values by date range	+0.32
Fast read different type of data with same command, better seperato...	+0.26
Row wise merge comma separated values in a `data.table`	+1.27
Selecting frequent values from multiple columns from R table	-1.03
conditional calculations in data frame	+0.29
For each `pop` get frequencies of the elements of `id`	-1.97