StackRating

An Elo-based rating system for Stack Overflow

Home | About | Stats and Analysis | Get a Badge

Rating Stats for

Frank Zhang

Rating
1510.29 (68,733rd)

Reputation
1,266 (126,623rd)

Page: 1 2

Title	Δ
Extracting data from scrolling table using Rvest	0.00
Calculating cumsum of mortality before a specific date in R	0.00
How to delete the 0 before a number?	+3.58
Merging rows with overlapping values	+2.13
Multiple pairwise differences based on column name patterns	-3.32
How to convert string to numeric to sum values in one cell in R?	-3.14
Splitting and creating 2 rows out of one in R data table	-0.85
How to get last N rows of each group in dplyr with missing rows as 0?	+1.06
How to transform row to column based on a single row in R?	-2.62
How to count the number of times a string appears?	+0.73
How to remove two columns with the same name in data table R	+5.28
Tidy way to pivot_wider by a range (given by values in two columns)?	+2.44
Split DF into several columns	-2.29
Combine incremental sequence with a fixed columns in a dataframe	+1.35
How to merge the names while converting nested list to data frame	-2.96
How do I select columns based on number of unique vales?	-1.64
R pivot_longer(): tidyr wide to long manipulation reverse pivot sum...	-2.93
Perform and write functions on data using `by` in data.table	+0.43
Count variable values in r	-4.76
Subsetting multiple columns of a data.table with the same column name	-3.07
R DataTable Count Values In Column	+5.31
Assigning NAs to rows with conditional statement in r	+4.81
Rowwise operation with adaptive range using dplyr	0.00
Identify first instance of repeated values within a group	0.00
I want to add incrementing successive columns of a dataframe	+3.60
Pivot Creation using VBA with specific sheet name	-4.20
Assign number to each unique date in R	+4.00
Most efficient way to filter data.table based on an aggregated value	-0.39
Convert multiple header columns of a large dataset into rows	-2.57
back fill dates in R	+1.45
How to create subsets of multiple date ranges in R	+2.00
Efficiently convert per row values to another currency	+4.11
grouping by unstructured text columns to pivot data	-3.82
With R, how to delete duplicate rows and to keep the minimum starti...	-4.01
Coding a multiracial category in R	-0.35
How to convert a string to a specific time format in R?	+4.54
Convert a large list of tibbles into a single tibble	+4.06
Mutate_all except some columns	0.00
filter list with nested dataframes in R	0.00
Change data type per dataframe column based on a dataframe of prede...	+3.98
How to keep in data frame every ID once preferring largest value fi...	0.00
Grouping 1st and last date of a particular week	+1.43
Vectorizing Calculation of difference from lowest date value R	-1.26
R - unexpected result using foverlaps with dates	0.00
R: check in which range a date is while having a variable number of...	-3.17
In R is there a way to recode the columns from one data frame with...	+4.68
String seeming to be one single space character, but isn't	0.00
Deleting Rows Leading Up to a Value in R	-4.07
how to insert a symbol % in the column in r	-0.00
R - function like duplicated that removes all of the duplicated ins...	+3.97