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Rating Stats for

chinsoon12

Rating
1493.44 (4,328,249th)

Reputation
9,481 (16,227th)

Page: 1 2 3 ... 22

Title	Δ
Using by in a function with data.table	-1.82
Comparing a vector against each element of another vector	-1.97
Multi-group rankings using data table package	-0.76
Count length of sequential consequtive values per group in R	+0.97
Using a list of symbols in data.table's 'by'	-0.35
Apply a function in data.table grouped by a column	-1.27
R Faster way to create lag by entire group using data.table	+2.03
Efficient & faster way to merge & group in R	+0.06
Subset-join-replace using R data.table	+2.07
nth lowest value from from previous k values	-1.72
Calculate percentage of increase/decrease of time series data table...	-1.53
Rolling sum within group boundaries	0.00
rolling computation for following or previous values in a data.table	-1.57
How to get slices of differing numbers of rows while subsetting by...	-2.01
Complicated group by processing in data.table	+2.41
R, delete previous rows based on values in seperate column	-2.04
compare rows and fill gaps with previous values in a data table	-1.85
Find events between time frames using data.table R	+0.48
Match rows with the same or close start and end date in data.table r	0.00
Retiming a data.table in long format	0.00
Merge two data frames by id and date	-0.01
Interpolate time series (replace NAs) using growth rate of another...	+0.49
Merg or combine two dataframe with unequal rows and fill the gaps w...	0.00
Left join value of exact date and if missing find previous value	+0.06
How to subset specific rows of a dataframe conditioned to the datet...	+2.37
Find closest match for values in one column, if additional columns...	-0.81
Convert wide format to long format for n pairs of start and end dates	0.00
Creating time blocks for each date and populating presence data	-1.58
Sliding window on date-time field in data frame R	0.00
expand dates in two columns based on another two columns with ranges	+0.48
r data.table building a custom rolling sum function	-0.98
Join two datasets and fill information for time intervals in r	-0.68
Comparing values of a certain row with a certain number of previous...	0.00
aggregate time series data faster	0.00
Get the first to the last element of each group in the form of a da...	0.00
A merge indicator for R data.table?	0.00
Merge two data tables, take value from dt2 if dt1 has NA	0.00
Restructure data based on row numbers in R	0.00
Combine Table with reference to another table in R	0.00
Create equal number of rows for observations in data.tables	0.00
Nearest "n" rolling join in R data table	+0.56
R: Vectorize in-loop object modification	0.00
R: How to find longest periods with overlapping data points and no...	-0.13
Compute permutations following specific constraints	0.00
How to order rows by conditions in other columns in r?	+0.81
Performing `top_n`-like operations on tibbles with intersecting gro...	+0.50
Aggregate a data frame based on unordered three columns	+0.20
Find nearest range for a time that does not overlap existing ranges	+1.27
Find first row that meets condition after each row's date, by g...	+1.87
set next n values to zero when this value equal one	-0.82