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G. Grothendieck

Rating
1622.82 (1,021st)
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165,339 (319th)
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How to sum every nth (200) observation in a data frame using R +1.02
How can I modify this function to return a Unique ID generated from... 0.00
make created variable available in parent environment in r 0.00
How to calculate null space of a matrix in R so that the resulting... -0.67
R: Use rollapply on list column -0.52
Limit na.locf in zoo package -0.13
How to find the exact matrix only composed with 0 and 1 when the su... 0.00
How to use R to produce sequence (1,2,3...n,2,3...n,3,4..n...n-1,n) +0.94
using lead or lag from dplyr in combination with other variables +0.21
Writing a function to add rows to a data frame +0.31
Error in nonlinear least squeares in R - Logistic and Gompertz curves 0.00
R average of last 3 rows(values in different columns) grouping by t... +0.78
R function times() from package chron strange formatting 0.00
R - Using apply only on specific columns -0.60
Most Efficient Way to Combine String Columns and Skip Particular Fi... +0.71
changing date format with only months and year -0.17
Regex - Best way to match all values between two two digit numbers? -0.72
Calculating monthly returns based on Panel Data R 0.00
Regex to extract a number and its unit of measure that are separate... +1.37
Pasting a date with single quotation marks -2.54
How can I use pipe when I need to use the variable name? +0.32
Find initial conditions for nonlinear models using the nlsLM function 0.00
Cleaner way to plot multiple bar charts of different outcome variab... -1.20
Compute all possible slopes between two points -1.61
dplyr replace by position in R +0.82
I have three factors with some levels in common: how to change equa... -0.68
Cumulative multiplication in R with the addition of extra constants +0.18
(in R) Add metadata from a vector to a set of columns of a dataframe? 0.00
Making Pivot table with Multiple Columns and Aggregating by Unique... -0.51
How to plot multiple time series plots in a grid, where each plot h... 0.00
Creating a reshaped dataframe with a for-loop +0.90
substring replace nth positions R -0.40
Passing quasiquoted arguments within nested functions 0.00
Rearrange unbalanced time series data +0.87
In R, is there a way to use regular expressions or something simila... 0.00
Applying function to each group and column of R dataframe +0.37
Code Autoindentation in Rgui 0.00
R Functionals does not work when batch assigning names to variables +2.10
How to find closest locations for a list of locations in more effic... +1.16
Splitting coloumn with differing syntax in R +0.32
R - Dynamically Switch Between Variables in a Data Frame? 0.00
Using a date to find out the number of data entry in time series ve... -0.67
Convert five-year data to annual data and calculate new records in R -2.65
Converting nested summation to R type matrix multiplication 0.00
Splitting a column into multiple columns in R, when there is no &qu... +1.82
Rolling sum in R +0.31
R Adjusted R Squared multiple Independent Variables -0.20
How to build & store this large lower triangular matrix for mat... -1.63
Referencing Previous Column Value As Column Is Created +1.34
Complex lag inheritance with dplyr 0.00