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Rating Stats for

G. Grothendieck

Rating
1622.82 (1,021st)
Reputation
165,339 (319th)
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Title Δ
Is there a function in R that will sum values based on Date of Year? +0.82
Performing a multivariate dynlm on xts object +0.34
Convert multivariable, multigroup data to ts object 0.00
R - call xts via character +1.68
How to make a function order some values in a matrix in R? 0.00
In R, How to split a datset into columns based on variable start/st... -0.15
Setup Global Options of RMySQL to use with sqldf in R -0.15
concatenate a string into a numeric vector +0.12
stringr str_replace on multiple patterns and replacements? +0.02
rolling 30-day geometric mean with variable width -0.64
Applying is.na() function in a vector with pipe function -0.06
R Populate multi-dimensional array with input from alternating vect... -2.67
Extracting nth character till the end of string in R -0.76
Pass the `width` parameter of `zoo:rollapply` as argument to the ca... 0.00
Is there and R function for recoding variables? -0.02
Correctly using quote to call a variable based on a value -0.31
Create a variable by assigning a sequence to each id R 0.00
How to store different outputs inside a funcion? +0.01
R - plotting two time series only shows the first one -2.33
How to get the value if a date from one dataset is within a period... -0.28
How to calculate rolling mean for multiple columns at once with a g... 0.00
tidy eval with e.g. mtcars %>% mutate(target := log(target)) -2.34
Is there an R package that speeds up lagging and differencing in ti... 0.00
rollapplyr() creates only one new column instead of multiple column... -2.22
How to find doubling time of cells with scatterplot in R? +0.79
I want filter by previous near date my dataframe to a given date -0.40
Sort vector of file names in R as windows would sort them? -1.27
Shortcut to paste clipboard contents into RStudio automatically sur... +1.47
in R how to count the number of times a value appears and meet mult... 0.00
R Read (Excel, txt...) rows and columns with conditions -0.33
read line by line a csv file in R and create a feature? +1.35
Standard Error of the Regression for NLS Model 0.00
How do I filter rows depending on values in semi-colon separated co... -0.56
How to get rid of data frame name in `deparse(substitute())`? 0.00
How to use "summarise" from dplyr with dynamic column nam... +0.32
Rolling 3 Months Sum 0.00
Aggregate and collapse a vector based while maintaing order +0.33
extracting last and the second last part of url in R +1.28
Moving 10th character in a string to 4th from the end within datafr... +0.62
Modify the replacement value of a regex match in R -0.17
How to aggregate the data that have three dimensions? 0.00
R moving average between data frame variables 0.00
Delete part of column name for multiple columns -0.34
Extend last observed values using na.locf for specific country/vari... -1.27
Compare effect of environment between two dataframes -1.61
Extract numbers between characters in R +0.91
Using a sliding window to identify and return the first success 0.00
Trying to put if condion in r and creating a new variable with cert... 0.00
R: Enriched debugging for linear code chains 0.00
Need to separate strings into multiple variables based on numeric v... +1.65