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Rating Stats for

G. Grothendieck

Rating
1622.82 (1,021st)
Reputation
165,339 (319th)
Page: 1 ... 69 70 71 72 73 ... 105
Title Δ
Comparing every row in one matrix with every row of another matrix 0.00
Read data from a multi separated csv file in R +0.98
Using optim in R [Restrict parameters to distinct natural numbers] +0.37
Referring to previous row in calculation +0.33
Function accessing data from enclosing environment +0.34
Extract first Monday of every month -2.21
Dollar operator as function argument for sapply not working as expe... +0.34
convert yyyymmdd date format into yyddd ordinal date in R 0.00
R pattern to modify arguments passed to generic function 0.00
Difference between data frame and matrix indexing +0.35
R Code: non negative solution that satisfy n matrix equations 0.00
R Version of SAS macro variable? +1.36
Why is this xts frequency always 1? 0.00
Is an R object of class "POSIXlt" a "list" or n... +1.92
How to use a lookup table in R without creating duplicates? 0.00
Restructure data in r: reshape, dcast, melt...nothing seems to work... +1.83
R - Split by "\n" or three spaces and retain at least one... +1.81
R: Building formulas from strings in with.mids() 0.00
Efficient coding - R regular expression replicate line for each match -1.64
dplyr - right join after group_by not producing desired/expected re... -0.29
What's the real meaning about 'Everything that exists is an... -1.54
My xpath apply returns NULL value 0.00
Adding superscript to graph in R with no preceding character 0.00
Need help modeling data with a log() function +0.35
Inner join on LIKE sqldf 0.00
Scraping XML files using R: xpathSApply +1.15
Test for equality between all members of list +0.36
How can I compare regression coefficients across three (or more) gr... 0.00
i am confused with the R implementation of lag in Regression analysis +0.37
Use xts as a lookup table +0.37
Is it possible to duplicate and modify a list in one step in R? -0.25
R dplyr: mutate a column for specific row range +0.34
Fitting no linear R (where I am going wrong?) 0.00
R: legends in lattice function +0.38
Understanding P-Values in R - easy 0.00
String split using RegEx in R +0.40
Parsing (possibly) non-existend numbers with regexp in R -0.52
split list of data frames by group, apply function, combine into list +0.38
Is there an R function to get a table of expected counts? -1.68
gsub/regex: deleting begining and end special characters in a facto... +1.73
R and NLS: singular gradient matrix at initial parameter 0.00
Are there simple ways to lag (by group) in data frames without work... -0.14
concatenate several math expressions in R 0.00
Mixing functions and parameters in dplyr filter condition -1.79
R - Interpolation of time series with missing data 0.00
Integrate: the integral is probably divergent +1.78
I want to use a loop with the R package sqldf 0.00
Creating a (half-) regular sequence - a regular rate of varying int... -0.37
lubridate hour doesn't handle chron times 0.00
plot chron times as hours from origin 0.00