StackRating

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

G. Grothendieck

Rating
1622.82 (1,021st)
Reputation
165,339 (319th)
Page: 1 ... 83 84 85 86 87 ... 105
Title Δ
Finding difference between date-times in same column separated by s... 0.00
Linear regression for multivariate time series in R -2.41
R How to combine two matrices by row name when they have different... +0.34
rollapply with zoo and sub-daily data 0.00
Parsing through a string counting and removing infrequent character... +0.05
dplyr: function of rows +2.25
Matching timestamps and calculating time differences (R) 0.00
Datetime -Determine whether multiple(n) datetime ranges overlap eac... +0.39
CSV rows wrapped in quotation marks +0.37
R How to expand data frame column matrices into data frame columns 0.00
Data format conversion to be combined with string split in R -0.42
Reshape multivariate time series in R 0.00
Outputting difftime as HH:MM:SS:mm in R 0.00
Convert multiple irregular time series into regular time series 0.00
Do a call of a function inside the function itself in r 0.00
In-place modification in piping chain +0.05
Seasonal decompose of monthly data including NA in r 0.00
Moving average with changing period in R 0.00
Unable to convert Epoch time to Date using R 0.00
R nls gaussian fit "singular gradient matrix at initial parame... 0.00
R data.table setkey on numeric column 0.00
R extract numbers from a string -0.32
R: How to search for XML Node -0.42
R aggregate a dataframe and paste over many columns 0.00
Simple way to output list in the style "V, W, X, Y, and Z"... -1.32
Generic function called via second argument of foo(x, bar) in R 0.00
inject string at %(variable)s in R (Url pattern) 0.00
web scraping in R using xpathSApply 0.00
Converting numeric time to datetime POSIXct format in R 0.00
adding data from an irregular time series to a timeseries with 5-mi... -1.61
select rows based on multiple criteria in moving window of 3 0.00
Creating the mean average of every nth object in a specific column... -2.11
roll join with start/end window +2.25
splitting a column by factor within a data frame +1.46
indexing upper or lower triangle in matrix with diagonal 0.00
can dplyr package be used for conditional mutating? +2.28
optim() function error in parameter estimation 0.00
Solution of system of inequalities in R 0.00
splitting a list into two lists based on odd/even indices +1.38
Rolling Sum by Another Variable in R -0.48
Using INSERT statement in sqldf within R 0.00
SAS to R transition; Annual dummies, variable naming, numbered rang... +1.40
sqldf select statements in R not working? 0.00
How can you increment a gsub() replacement string? -0.39
How can I preserve xts format for fitted data after regression? +0.12
best way to convert DataFrame to Matrix in RCpp +2.07
Correct syntax for xpathSApply in R -2.32
Multiple aggregation with arithmetic on LHS in R formula -0.59
rearrange the output of the aggregate function into a new table -2.36
parameterized Sql Query in R not working -0.40