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Rating Stats for

Arun

Rating
1646.88 (617th)

Reputation
97,405 (767th)

Page: 1 ... 8 9 10 11 12 ... 26

Title	Δ
R merge three dataframe without forming the cartesian product	+0.30
Reshape data frame from wide to long with re-occuring column names...	-0.54
data.table replacing a column with a substring	0.00
unique rows in dplyr : row_number() from tbl_dt inconsistent to tbl...	0.00
Extracting part of column if pattern found in a data.table	+0.29
Don't resort data.table rows	0.00
Fast transformation from long data frame to wide array	-0.27
How to fill in the preceding numbers whenever there is a 0 in R?	+0.26
Convert List of Unequal Lengths to Uniform Lengths	0.00
Using 'fastmatch' package in R	-0.44
R - rolling window over data.table	0.00
Replicate row value following a factor	+1.13
R data table binary search not finding rows	0.00
dcast renaming all variables to start with a number (R)	+0.28
Determine if a vector is ordered	+1.37
Insert values of row r into row (r+1) and insert 1 into the first r...	0.00
dplyr group_by and summarize for two df's with same column name	-0.21
R - Using data.table to efficiently test rolling conditions across...	0.00
Load, detach, re-load anomaly	0.00
Removing factor level in data.table	-0.55
dplyr idiom for summarize() a filtered-group-by, and also replace a...	0.00
Create lagged vectors based on a different data.frame in a panel in R	-0.80
data.table aggregation with rolling subset on date	+0.90
Slow data.frame row assignation	0.00
Range join data.frames - specific date column with date ranges/inte...	+1.17
data.table converts factors in `by` to underlying integer?	0.00
Error in `setDT` from `data.table` package	0.00
How to match by nearest date from two data frames?	+0.33
R conditional replace with '[' and without subset()	-1.92
Jumping to the next available date when merging panels	0.00
Jumping to the next available date when merging data.frames by date	+0.29
Efficient count or tabulation of a factor by other factors and resh...	+1.56
R data.table breaks in exported functions	0.00
Apply function to subset of data frame	-0.69
Error when using rbind to merge data.tables and one of them is empty	-2.86
Why is allow.cartesian required at times when when joining data.tab...	0.00
Reshape a dataframe into stacks of average values	+1.23
finding largest consecutive region in table	0.00
assigning a subset of data.table rows and columns by join	0.00
Reshape from long to wide data format and matching start to end dat...	0.00
Fastest way for filling-in missing dates for data.table	+1.15
Sort in R with multiple criteria (alphanumeric)	0.00
Aggregating duplicate rows by taking sum	0.00
Tag all duplicate rows in R as in Stata	+0.29
R: Checking if a set of variables forms a unique index	+1.01
calculate cumulative sum of one column based on another column's rank	0.00
Count the number of times each string occurs in R	0.00
r - data.table join and then add all columns from one table to anot...	0.00
data.table joins - Select all columns in the i argument	0.00
Summarizing by groups applying function which involves the next group	-0.25