StackRating

An Elo-based rating system for Stack Overflow

Home | About | Stats and Analysis | Get a Badge

Rating Stats for

G. Grothendieck

Rating
1622.82 (1,021st)

Reputation
165,339 (319th)

Page: 1 ... 19 20 21 22 23 ... 105

Title	Δ
Filtering function not returning filtered df	0.00
finding overlapping time between start time and end time of individ...	0.00
averaging specific rows of one column based on values of another	0.00
Selecting the first non 0 value in a row	0.00
Rolling sum based on date variable	+1.47
counting days since price change for product	+0.78
How to replace numeric month with a month's full name	+1.06
Glue vector to string	-2.30
How do I use this stata function (sum y if x1 == ? & x2 >= ?...	-0.20
How to use regular expressions to turn text-based data into CSV	0.00
Replace a specific character in a string with gsub() and Regex	+0.50
R: How can I save all objects within a functions local environment?	0.00
Calculating the maximum of selected rows	+1.33
Finding combinations that do not exist in a given data set	+0.99
function does not evaluate on each occurance	-0.16
sqldf avg of n columns grouped	-0.19
Compute the variance of a moving window in a dataframe	0.00
Parse a column that contains both column names and values for those...	0.00
making a new column with 3 columns	+0.68
Copy_to in R results in dates being converted to numeric columns	0.00
Delete first 10 lines only for some files	+0.88
How to read data	0.00
Getting percentages out of a list of dataframes in R	0.00
I want to convert variable from percentage to absolute	-0.44
How to perform a calculation for all columns of a matrix?	-0.37
How does model.matrix select levels for interaction terms	0.00
Convert data frame to time series R	-0.45
A problem with wrapping array algorithm into a function	0.00
Pass dynamic column name to transform() R function	+1.54
I have time series data in csv with both duplicate and missing time...	0.00
need help in using paste0 in group_by in R	0.00
What is the best way to create a new column based on two conditions?	0.00
Changing variable value based on condition	-0.16
How to graph families of site index curves?	0.00
How can I arrange the levels of a variable in a Bar Chart created b...	0.00
parse values based on groups in R	-2.68
How to ignore delimiters inside quoted strings when importing a csv...	0.00
Converting time in seconds to Hours:Minutes:Seconds	-0.19
Pairwise comparison of dataframe row elements	-0.70
R: Fastest way to compare i element of a vector with all the previo...	0.00
How to do regex to match a number and then multiply the number at t...	+1.36
using `plotmath` to display combination of subscript and `[ ]`	-0.66
How to predict next next number in a sequence in R	+1.16
Convert CSV to vector form in R language	0.00
What code does a task like the reshape2 package in a base reshape f...	0.00
Subset a dataframe into a list of dataframes in one go	+0.53
How to randomly generate a date and time that take place after anot...	0.00
Carry forward last non-NA date across multiple columns into one col...	+0.46
Using R to split text into a labeled table	0.00
How to perform calculations on moving subsets of n elements of data...	0.00