StackRating

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

Jilber Urbina

Rating
1570.53 (3,984th)
Reputation
44,632 (2,375th)
Page: 1 ... 7 8 9 10 11 ... 21
Title Δ
Determine if a vector is ordered -0.06
Max from each of several dataframes -0.31
Delete rows with less than 7 Characters -0.19
Replace a character in a text 0.00
Accessing a named column of a data frame using a variable which hol... 0.00
Replacement has more rows than data in for loop 0.00
extract partial string based on pattern in r +1.55
Boolean operators and which() function in R 0.00
R Error in x$ed : $ operator is invalid for atomic vectors -0.12
Setting up data set in R 0.00
Find frequency of each column in data.frame +1.84
insert a column in between two arbitrary columns in a matrix +0.97
How to manipulate a data.frame by factor with dplyr -0.63
Treat a Character as a variable 0.00
In R, how do I assign value from adjacent top column if cell is null -0.20
select subset of dataset based on one column +0.39
Add elements from vectors using different indices 0.00
Turning few columns to row and maintain the other +0.15
Filling a column with NA, based on the value in an another column 0.00
Add values to dataframe when condition met in R 0.00
R function how to take the name of df -0.51
Multiply all items of vector by single item of another vector 0.00
Subsequent row summing in dataframe object 0.00
Replace NA with previous and next rows mean in R -1.74
Compare sequence of floats to vector 0.00
Remove ith row of a matrix. i varies from 1 to number of rows in da... 0.00
Difference between mean(c(1,2,21)) and mean(1,2,21) -1.89
Storing function output in a list in R +1.27
Create a data frame from list values +0.32
re-order first and second column based on third while keeping it in... +0.38
How to count the number of elements by group in R? 0.00
How to insert row into dataframe with row name? 0.00
What is the best way to combine the two mutually exclusive columns... +0.38
order a column within each group -0.61
R: Is there an efficient way to perform groupBy on one column and s... +0.39
Extract indices from array meeting a condition in R +0.39
How Can I split a comma in new column in r -0.13
apply function in vectorization of a vector inside another vector +0.40
Create header of a dataframe from the first row in the data frame -0.11
Regex in R--Words which don't end in specific characters in a line -0.59
Remove Duplicate Lines in R 0.00
R count observations greater than 0.00
subset a table conditional of some criteria -1.27
Choose specific number with probability 0.00
Apply function over list of vectors 0.00
R search Number between two others in a vector -0.41
Formula Input Error in R +1.75
How do I use grep on a data frame? +0.10
concatenate strings using common identifier -0.11
How to get p-value from a summary anova test in R? -0.12