StackRating

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

hadley

Rating
1599.50 (1,799th) 		Reputation
83,303 (974th)
Page: 1 2 3 4 5 ... 12
Title Δ
How to get the cumulative sum by group in R? -2.26
Cookie request using R +0.36
Remove duplicated rows using dplyr 0.00
How to avoid printing line numbers with data.table? -0.62
finding duplicate rows counts in R by keeping all rows -0.29
fast url query with R 0.00
Removing quote marks and spaces within a URL +1.45
`spread= a - b` calculation on the tall data with `dplyr` and `data... -1.33
RCurl JSON data to JIRA REST add issue 0.00
passing function argument to dplyr select 0.00
Change how R stacks Transparency 0.00
Fitting several regression models with dplyr -0.14
Accessing grouped data in dplyr +0.34
Containing reactive objects in Shiny for export 0.00
Finding the consecutive vowels using regex -2.59
using data.table/plyr in R -0.08
R: Remove visual clutter from tracemem when used in function -0.67
Reference package vignettes with Roxygen2 0.00
How can I use dplyr to apply a function to all non-group_by columns? +1.78
Creating a time variable to melt a data frame -0.05
User supplied arguments for ordering a data.frame using arrange +0.17
Is it possible to speed up my function for creating a correlation m... +0.30
Efficient conversion to vectors in R +0.03
Using comparison operators on packageVersion 0.00
R S4 overloading of subscript operator for base matrix class 0.00
Debugging RCurl-based authentication & form submission +0.10
RCurl handle Chinese characters 0.00
Inconsistency with R's Global Environment in a function call 0.00
subsetting by multi-column index/key in dplyr (have data.table soln) +0.35
finding the max value for values the row before through the row aft... -0.61
How do I dispatch cat in R S3? -0.24
Can I prevent arguments from being passed via NextMethod in R? 0.00
Listing explicitly defined methods only (Reference Classes) +0.02
Using the openpaths.cc API with R -0.87
R URL encoding issue? 0.00
how can I mutate in dplyr without losing order? 0.00
R subset unique observation keeping last entry +0.66
Does mutate change tbl by reference? -0.96
Create an "index" for each element of a group with data.t... -1.78
Gettting cumulative sum of previous values except for the first value -2.41
Read the text file with BOM in R 0.00
subsetting data to first occurrence in R -1.26
Extract a dplyr tbl column as a vector 0.00
Replace column in a list of data.tables with R 0.00
How to select columns conditionally in a data frame in R -2.52
Function to get the actual dimnames() +2.40
In an R dataframe, how do I broadcast columns corresponding to dime... +0.38
How to identify the nth instance of a value in a data frame in R -1.40
Select top ten levels of a factor based on another variable +1.63
Create a subsetting function according to one or more couple of val... +2.43