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Rating Stats for

chinsoon12

Rating
1493.44 (4,328,249th)

Reputation
9,481 (16,227th)

Page: 1 2 3 4 ... 22

Title	Δ
replace historical data of a data.frame with the most recent year d...	-1.59
Grouping conditional linked values within a data.table	0.00
Join a value onto an existing data.table without an exact match (ma...	0.00
Merging rows with overlapping values	+1.10
How can one replace missing values in a column with values imputed...	0.00
Average of month's data (jan-dec) in xts objects	-0.09
Aggregate with adjacent group if value falls below a threshold	-0.74
flag groups with identical rows in some columns of a data.table	-0.76
Algorithm to extract elements with largest sum from a matrix withou...	+0.00
Create new column based on whether date is between other dates, ove...	-0.70
Optimizing the speed of loop in a xts format in R	0.00
R: remove duplicate rows with full overlap of non-missing variables	+0.49
Iteratively calculate columns of a data.table one row at a time (re...	+2.12
Within-group operations in R (not rolling sum)	+0.52
Interactive join in r based on different variables	+0.52
Back transform dummy columns into one variable	-0.27
R: Using dplyr to count number of occurence 1 hour ahead	+1.87
Searching for the largest sum interval	+2.18
r data.table - assign blank to duplicate value (by group)	-0.65
How to find a value by date from a list with xts	+0.56
How to generate random uniform distribution down a column of values...	-2.02
How to get each customers entry and exit to the shop?	+0.01
Matching and Generating new IDs rows in R	0.00
R: find people had glucose tests at least 4 times a month and conti...	-0.35
Difference between timestamps per day, with a night break in R	0.00
How can I match and filter a dataset using another one?	0.00
accumulated count for each elemnet in a range	+0.11
Merge two dataframes based on an exact match in one column and matc...	-0.50
grouping continuous data with specific pattern	+1.36
R function for calculating a 'cumulative difference'	+2.01
Minimization problem with linking constraints in R	+0.05
Efficient way of labelling based on start and end position	+1.46
R find intervals in data.table	-0.75
Adding a sequence	-0.06
Split a data.table at position	-0.60
R merge two datasets based on specific columns with added condition	+1.01
How to get people in the store at every 5 minutes?	0.00
Calculate part of duration that occur in each hour of day	+0.23
R Fill new columns with NA if lag condition is matched	-1.58
limited size dates groups by interval	-0.02
Calculating time interval based on consecutive rows which are dupli...	0.00
Summing the difference of all values of one vector that are less th...	+1.58
R; The number of days maximum and minimum in a dataframe	+2.08
Overlap between multiple time-intervals columns by group	+0.50
how to get more efficient row counts and uniqueN in a very BIG data...	0.00
Add dynamically multiple columns to data table	0.00
Look up intervals from another data.table - by group	-1.67
rolling join two data.tables	+0.42
How to reorder rows in R data.table given a specific row order	+0.50
Converting string values into frequency count	0.00