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Rating Stats for

Arun

Rating
1646.88 (617th)

Reputation
97,405 (767th)

Page: 1 ... 4 5 6 7 8 ... 26

Title	Δ
R: data.table, set first and last value of a group to NA	+0.59
How to sort data in R	-2.10
Aggregate by string column name in R	-0.28
Summary of a data.table using internal order	+1.73
Conditional statments in r in two columns	-0.12
R data.table update errors	-0.20
How to select the first and last one test without NA in r	-0.15
R: from wide list of tags to long list of connections	-1.89
Rearranging longitudinal data	-0.64
R: How to dcast a subset of 'variable' to a separate column...	-0.20
Summarize the self-join index while avoiding cartesian product in R...	0.00
R Data.Table Join on Conditionals	+1.26
How can I merge two data frames with multiple common keys without d...	+0.29
Combine Multiple Columns Into Tidy Data	-2.24
unique working incorrectly with data.table	0.00
Order a data.table	0.00
Is there a function like switch which works inside of dplyr::mutate?	-1.55
dplyr ranking observations across variables	-1.84
Optimizaion of calculating how many data.frame record timestamps ap...	+0.76
R - Turn List Into DataFrame	-1.38
R: Compare a column of a data.table with a vector	+1.16
Why is data.table not making a data.table from a table although dat...	0.00
Passing function argument to data.table i	0.00
How to replace value in multiple values?	+0.34
R add columns by loop in data table	-0.68
How I can find out 1st and last observation with in group in R for...	+1.46
r - select last n occurrences for each group	+0.41
Sorting of data frame per date and string value	-0.52
Using data.table to calculate a function which depends on many colu...	0.00
R: Using a datatable to aggregate data	+0.30
Subset only those rows whose intervals does not fall within another...	+0.29
Select subset of columns in data.table R	+0.84
how do you group and merge columns in R	+0.30
Adding new columns to a data.table by-reference within a function n...	0.00
data.table lag operator throwing error	0.00
Reshape data frame in R: rows to columns	-0.72
R script: Range overlap/intersect by group and between years	0.00
Gforce min not supported for character in data.table	0.00
ID chunks of rows by start and end value	-1.80
Create an new column in data frame : index in group (not unique bet...	+1.67
R group by and aggregate - return relative rank within groups using...	+1.36
R - merge unequal regular (15 min intervals) and irregular time ser...	+0.05
Speed up vector-lookup for data.table	-0.19
subsetting data tables by dynamic column names	0.00
R - add column that counts sequentially within groups but repeats f...	-0.69
data.table: increase IDateTime by hour to lag hourly data	0.00
How to create a matrix of different format from a data frame in R?	+0.20
Creating variable in R data frame depending on another data frame	-0.39
How to efficiently read the first character from each line of a tex...	-2.35
Function for pasting corrected values inside existing dataframe	+1.49