StackRating

An Elo-based rating system for Stack Overflow

Home | About | Stats and Analysis | Get a Badge

Rating Stats for

MichaelChirico

Rating
1581.19 (2,917th)

Reputation
20,893 (6,447th)

Page: 1 2 3 4 5 ... 11

Title	Δ
How to get an output in groupwise format and export the same format...	0.00
using roll in data.table join, can i force strictly one match	-0.51
How do I change the column names using dcast?	0.00
R web-scraping on a multiple-level website with non dynamic URLs	0.00
Number of days to a holiday	+2.52
how to speed up cross-column calculation in grouped data frame	0.00
Check if string appears in any column (except 1st one) of a data.ta...	-1.17
How to get time differences with output having multiple units	-1.05
Aggregating monthly data to quarterly (averages)	+0.11
How do I find the row and column number for a particular string in...	-2.50
Can we setDT on multiple object all at once?	0.00
How to combine linear model with step function	0.00
How to simultaneously read and write a file line by line?	-0.18
Merging columns with a key that tells which column should be priori...	-1.49
Group values based on 2 columns	-2.27
How to select rows in data.table by matching conditions with a vector	+0.41
Comparing group means	+0.38
Extract elements from a vector using a sparse matrix in R without c...	-1.95
Get all possible permutations of a DNA sequence with an ambiguous b...	+1.75
How to reverse a string without effecting the numbers in R?	+1.76
Efficiently combine (AND) groups of columns in a logical matrix	+2.35
Calculate all variable combinations and the distinct counts of df u...	0.00
Cumulative time with reset	-0.58
Use dynamic names for CJ in data.table	0.00
Delete leading zeros of each column of a data.table	-0.22
r data.table groupby join in pyspark 1.6	0.00
R not consistently converting time around DST time change	0.00
column slots in data.table	0.00
data.table filtering solution based on posixct datetime and two var...	0.00
R CMD build . fails: "argument is of length zero"	0.00
How to grep a line start with #* using grep in R	-1.09
Using mean to calculate most likely	+0.40
Filling a matrix in R	-0.55
Summary statistics from aggregated groups using data.table	0.00
writing Dataframe with list to CSV	0.00
Jaro-Winkler's difference between packages	0.00
How small is a "zero-length arrow"?	0.00
Creating a matrix based on time series at different locations in R	0.00
R: do calculation for each factor level separately, then calculate...	-0.27
Read complex html file into R with rvest	0.00
Incorrect difference in dates with different formats	-0.59
use a for loop to create a column containing the count of value in...	-0.42
Delete columns containing only NA with data table	0.00
How can I delete certain rows according to two columns which have s...	+1.20
How to reorder a list by the size of the data frame in each list el...	0.00
R: approximating `e = exp(1)` using `(1 + 1 / n) ^ n` gives absurd...	-1.35
R data.table: using %like% with setkey	0.00
How can I check if a sequence of events is in order?	-0.09
Quotations marks and expression	0.00
Completing intervals and filling column	-1.99