StackRating

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

Wojciech Sobala

Rating
1403.03 (4,536,155th) 		Reputation
5,637 (29,124th)
Page: 1 2 3
Title Δ
use a name as key in R list +0.95
Remove records starting a character (Vxxx) to enable floor() comman... -2.72
How to add new position to search path 0.00
Search for a string in Specific rows of data frame in R -1.08
How can we combine predictors from two different linear models into... +1.28
Using columns with special characters in formulae in R +4.79
How to use variable labels in R? -3.29
R: numbering elements in a vector +5.11
calculating length of episodes/event using R -0.31
R: loop through a check all that apply response to create dummy ind... -3.51
Subseting with ddply -0.42
Add named vector to a list -3.15
dynamically expand a data frame columns using cbind -2.76
R unique combinations of values +1.29
Add a vector as a single observation to a data.frame +4.56
R Regular Expression Lookbehind -3.31
Removing all the columns of the data frame that have same values ac... 0.00
How to determine keys of array-elements that have a value contained... +5.69
Repeat data.frame N times -3.08
R repeat elements of data frame +0.73
Get JavaScript GoogleMaps coordinates with web-scraping 0.00
Force Coefficient to be Negative in R lm -1.61
Comparing two columns: logical- is value from column 1 also in colu... -3.35
Extract standard errors from glm +4.97
Looping through number list in R 0.00
Simplifying the process of creating a summary table -2.35
Efficiently replace a fixed position substring with a string of equ... -1.90
How do I read a text file into R when each record is a paragraph an... -2.18
Create empty csv file in R +2.40
R: How to merge non-aligned data frames based on column values +1.38
using seq_along, paste to recode in a loop -0.75
Importing one long line of data with spaces into R +3.79
removing columns with same value from a data frame -1.13
How to create multiple ,csv files in R? +1.30
use gsub in R to cut the character out between two slashes -3.19
generate sets for cross-validation in R +3.03
How to find indices of non zero elements in large sparse matrix? -1.49
Compare one row to all other rows in a file using R -3.14
In R, how do i return the result of aggregate as a matrix? 0.00
Why can't I add numbers in a dataframe created with cbind? -3.25
R Grouping/Aggregation where the condition involves other rows in t... -3.39
R: Turning data in a dataframe to columns -0.37
How do I create component (subset) dataframes in R based on column... -2.96
How do i get two lists together in R? -2.68
R: Applying a function to all row-pairs of a matrix without for loop -2.85
Force apply to return a list -3.39
Finding the matrix row median and absolute deviation -1.19
subsetting a data frame for n rows by group and by ordering a varia... +0.74
How to use with/within inside a function? -3.75
get row with max values in all columns in R -3.57