StackRating

An Elo-based rating system for Stack Overflow

Home | About | Stats and Analysis | Get a Badge

Rating Stats for

markus

Rating
1639.78 (707th)

Reputation
14,207 (10,041st)

Page: 1 ... 9 10 11 12 13 ... 16

Title	Δ
Find unique values in a character vector separated by commas and th...	-2.18
identify age at 1st occurrence of each value in long data frame	0.00
Calculating manhattan and euclidean distance	-0.44
dplyr to replace colnames with first row and remove first row using...	0.00
Checking duplicates cross two columns in R	+0.41
How can I sort the rows of a data.table based on arbitrary order?	-0.10
How to pivot a table using a sequence of quarters between two dates	+0.40
Select elements from a list	0.00
Reshaping Routing Data, via Creating subset, in R	+0.42
R Term frequency from large document set	-0.59
dplyr reordering rows by string	+0.42
Replacing multiple NA's with one mean	0.00
R plot using ggplot facet_grid add legend	0.00
Create columns from aggregated row data in R	-1.27
R: Finding the index of a matching value within the same column	0.00
create sequence along group that restarts based on another column&#...	+0.38
Using mutate and group_by to roll an operation over rows	0.00
ifelse with list of possible string matches and no else	-0.47
Calculate rowSums for three-dimensional array without for-loop/apply	+0.07
How to edit the names and cross this two data frames?	+1.88
adding last value to the top of the data frame.	+0.74
Re-cast column types to a data frame which has already been read	+0.15
Extract column of strings from dataframe in R when they are "f...	+0.42
expanded for loop code instead of shortcut for loop code	0.00
Merge 2 data frames by row and column overlap	+1.19
Using vectorisation or apply to extract values from matrix to bind...	+1.70
Concatenating strings with multiple separators using paste() in R	+2.38
error using mutate_all toupper since string is of the form "13...	0.00
Group values with identical ID into columns without summerizing the...	+1.68
List of list to data frame when inner list contains a vector	0.00
ggplot2 facet_wrap results in blank queries	0.00
Repeat a value within each ID	+1.84
Using ifelse statement on the whole dataset instead of a single col...	+1.66
dplyr group by string match	+1.76
Filter data after a specific row	-0.11
Variable shows values but str shows NULL in r. How to check structu...	0.00
Merging Columns within the same dataset	0.00
FInd first value different in a string and the position respectively	+0.49
How to change color of outliers when using geom_boxplot	0.00
Elementwise aggregation of many vectors stored in a list	+1.22
Correlation plot between two data frames in R (Correlation heatmap)	0.00
increase multiple rows based on minimum and maximum of age for each...	+1.77
Arrange column in data frame	0.00
Create R dataframe with column A * column B	+0.13
How to add means to a ggplot + geom_point plot	+0.04
Filter a data frame by two conditions in R	-2.26
R How to extract vector of integers from multi-list data structure	+1.94
Format number to specific number of digits and custom punctuation	-0.06
How to get elapsed time with system.time?	0.00
Rolling mean with changing window size on a large dataset	+1.79