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Rating Stats for

Arun

Rating
1646.88 (617th)

Reputation
97,405 (767th)

Page: 1 ... 9 10 11 12 13 ... 26

Title	Δ
R Counting duplicate values and adding them to separate vectors	-0.75
'by' seems to not retain attribute of 'date' type columns in data.t...	0.00
Using lists inside data.table columns	-0.28
Data.table filter out specific values in each column (which vary by...	+1.47
R data.table subset with compare	0.00
lookup keys in df2 in an array of keys in df1 and merge correspondi...	-0.96
add missing rows to a data table	+1.26
Conditionally filling in missing values while reshaping a long to w...	+1.17
How to efficiently add an order variable to a big data frame	+0.29
Performing (unbalanced) time series validation (with data.table?)	0.00
`data.table` global search - filter rows given pattern match in `an...	+0.63
Sort Rows in R by certain characteristic	-1.17
Find and replace values with data.table in R?	0.00
R data.table 1.9.2 issue on setkey	0.00
Select rows in data.table based on in-row calculation	-2.58
Ranged/Filtered Cross Join with R data.table	0.00
Ranged/Filtered Cross Join with R data.table	0.00
How is J() function implemented in data.table?	0.00
Nested groupings with data.table	0.00
R subset unique observation keeping last entry	-1.02
Does mutate change tbl by reference?	+1.76
Replacing NA's iteratively using data table in 'R'	-0.24
Create an "index" for each element of a group with data.t...	+1.78
Why does rbindlist not respect column names?	0.00
data.table 1.8.11 and aggregation issues	0.00
rowwise look-up in R using data.table	0.00
Efficiently obtaining counts per group from multiple subsetting on...	-0.57
dplyr filter: Get rows with minimum of variable, but only the first...	-0.45
Determine when columns of a data.frame change value and return indi...	+1.27
Subset data.table using min condition	0.00
Percentage within category	-0.34
Subsetting columns works on data.frame but not on data.table	-0.18
Calculate between columns in data.table or dplyr?	-0.56
How can I construct an outer product matrix from a data.table	+0.61
R plyr, data.table, apply certain columns of data.frame	+0.56
Create a panel data frame	-0.94
Extract the best attributes from a data.table	0.00
Finding the index of first changes in the elements of a vector in R	-0.49
How to get all the sum in aggregate function?	+0.78
How to generate a linear combination of variables and update table...	0.00
data.table: vector scan v binary search with numeric columns - supe...	0.00
Warning: 'Invalid .internal.selfref detected' when adding a column...	+1.72
Merge two data.frames with replacement	+0.36
Applying a custom function on data.table instead of using plyr and...	0.00
R : data.table subsetting based on a integer column	+0.60
R: data.table : searching on multiple columns AND setting data type	+1.09
Replacing all missing values in R data.table with a value	+1.28
Apply function on a subset of columns (.SDcols) whilst applying a d...	+0.31
Memory leak in data.table grouped assignment by reference	0.00
Convert a data frame to a data.table without copy	0.00