StackRating

An Elo-based rating system for Stack Overflow

Home | About | Stats and Analysis | Get a Badge

Rating Stats for

d.b

Rating
1551.74 (7,432nd)

Reputation
20,645 (6,563rd)

Page: 1 ... 12 13 14 15 16 ... 26

Title	Δ
Split a vector into chunks such that sum of each chunk is approxima...	-1.20
R - find columns where all values are either NA or single value (0...	-0.17
Merge/Collapsing identical consecutive elements in a vector	+1.48
multiply a dataframe element-wise by a row	+1.96
How to sum by all diagonals of a matrix?	+0.19
Using a while loop to create a new variable based on duplicated val...	-0.98
Plot "Dotplot" (stacked points)	-1.84
Replace the elements in a matrix with NA for those with row and col...	+1.93
How to rescale differences in time in R?	0.00
generate q1/q3 as variables by group in R	+1.99
Sorting a dataframe by substring of columns values	0.00
Summing columns with string match on dates	+1.73
Creating a new column based on two old columns in a data frame	-0.22
How to keep only unique rows but ignore a column?	-1.01
R: cumulative sum based on another column and max sum value	-2.16
Flag observations before and after a specific value in another column	-1.00
Element of vector to different columns of data frame	-0.14
R: Subtract a row from others in group	+0.48
Extract elements from a list given the positions in another list	+0.01
how to summary the historical data based on the same ID in R	+0.01
How to convert a long data frame to a wide data frame with duplicat...	+1.91
Transforming NA to specific arrays of a matrix in R	-0.51
Computing averages and standard deviations of r data.frames	0.00
Keep only capitalised words and remove spaces in between	+2.12
R: create a vector based on a list	-0.43
how to create several lines plot in r	+2.82
Merge identically named columns (with text in rows) in one dataframe	0.00
Finding the column index where a row changes values in R dataframe/...	-0.47
Create sequence between certain values across two vectors	-1.74
random subset of fixed length such that each group is present at le...	0.00
Appending a row of sums for each level of a factor	+1.24
r programming: align two sequences of words	0.00
size of legend is too big and cex is not useful	0.00
filter one data.frame by another data.frame by specific columns	+1.16
Function to group elements of a vector/list	+0.49
How to sanitize a df according to specific variable values?	-1.29
Count value if columns match	+1.21
Grouping and counting to get a closerate	+0.86
Convert to numeric string with colons and commas in R	0.00
Add rows to data frame such that there are exactly n repeats of eac...	-1.65
Select columns larger than a value	-1.35
Random Grouping of arrays based on average values in R	0.00
Why does runif() not predict the interval maximum value?	-0.42
convert digits to special format	+1.20
Highlighting a specific bar with a specific value in ggplot	0.00
Change date variable to continuous month	+1.60
How to append group row into dataframe	+1.93
How to handle NAs in ifelse when creating new column	-0.47
Plot several densities in same figure	+2.42
r - How to combine multiple lists of lists into a dataframe	+0.78