StackRating

An Elo-based rating system for Stack Overflow
Home   |   About   |   Stats and Analysis   |   Get a Badge
Rating Stats for

chinsoon12

Rating
1493.44 (4,328,249th)
Reputation
9,481 (16,227th)
Page: 1 ... 5 6 7 8 9 ... 22
Title Δ
Filter and group by with data.table +0.01
R: carrying values forward by an ID and only through a given date r... +0.41
How to have a result by group when group_by doesn't apply. Weig... 0.00
R: t-test for each pairwise combination of a grouping variable, don... +1.37
Merge data.tables while keeping original order in R +0.03
How Merge transaction qty from one dataframe into another dataframe... -0.47
Compute dissimilarity between each pairs of categorical unit in a d... +0.02
Filter pairs of elements so that each element occurs in only one pair -1.02
Generate counts within group and subgroup +0.90
How to get 0-padded binary representation of an integer in R language -1.49
Processing Large Data Sets in R 0.00
Identifying if time intervals overlap with multiple patient IDs, in r +0.10
Aggregate with combination of multiple columns in R with all possib... +0.32
Count number of events in the previous time period -1.79
Insert rows based on difference between value from col A row N and... -1.41
Filling gaps before, between and after spells (date ranges) in R 0.00
Find immediate neighbors by group using data table or igraph -1.03
Count consecutive days by group -1.44
Rename sequence of elements if it occurs more than once (R, dplyr) -0.58
how to merge a list with a datatable while keeping the list format... -1.48
how to subset the rows in a data frame with coordinates based on cl... -1.91
How to add two columns from two different dataframes in R wherein o... +0.76
compare multiple columns in one or two data frames r -0.99
Find all existed cycles from data in R 0.00
data.table update join by group +0.51
Is there a way to assign a value to data.table columns selected pro... -1.02
frollsum, frollapply, etc... alternative: frollmedian? 0.00
Reverse a number in R +1.20
R read.csv loop with iterating variable in quotation marks +0.31
Fill in Missing Dates and Time in Quarterly Time Series According t... -1.41
Allocating prizes in tournament with ties using R and data.table 0.00
Assigning low/med/high labels within subgroup based on a numerical... -1.42
How to change `DateTime` from `df1` to `DateTime2` from `df2` when... -0.99
Using R to find decision boundary of two non-linear equations with... 0.00
Calculating ALL nested level aggregations of specific Column ( SUM,... +2.51
Assign group id to sequence of concecutive unique values in timeser... -0.59
Merge a data.table and a list +0.51
conditionnal filling of a data table with the column names 0.00
Fill in missing date interval by group r 0.00
R data.table - How specify by variable in descending order? -1.50
Remove SOME duplicates in data.table column X, but retain duplicate... -1.61
Filling a data.table from smaller data.tables +0.44
Delete empty folders in r 0.00
Split two columns simultaneously and make data in long format with... -1.47
fill matrix with numbers in each row to create a parttern +1.55
Loop calculation with previous value not using for in R +0.65
Replace values in a data.table based on row values in another table -0.09
Using lags to calculate consecutive values (vectorization instead o... 0.00
Find whether observations appear back-to-back-to-back within a group -0.61
Identify if a value is repeated or not by groups in R -2.01