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ThomasIsCoding

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1498.73 (3,826,018th) 		Reputation
43 (1,121,033rd)
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How do I aggregate data in a R dataframe 0.00
Creating a variable that marks the first observed value in one colu... -2.12
How to attach data a column to multiple columns in R +0.15
Find maximum value of a equation with optim() -0.02
Increase speed for a ifelse-for loop in R, while filling matrix wit... +1.95
Calculate the frequency of duplicated rows, based on specific colum... -1.43
How can i find the five longest words in stringr::words -2.13
using R How to remove all words after a specific character in -1.08
Merge two binary columns into one keep the binary option -2.15
Conditional column creation based on similar repetitive occurrence +1.88
Rcpp (Eigen), duplicate or repeat rows -1.39
Create a sequence of numbers from -100 to 100 at the interval of 2,... 0.00
Find the n values whose sum is equal to 2020 +0.18
Generate a pyramid in R using a vector and a defined scalar -1.31
Dividing one column vector into different columns, according to the... -1.63
How to reshape the data structure -0.04
Transform dataframe of characters into a "more clear" dat... +1.39
Writing a vector into a matrix -1.55
Is there an R function to repeatedly create objects? 0.00
Extracting numbers (in decimal and </> form) from strings in R +1.44
Retrieving information of each matrix from a list in R -1.42
Remove columns in which factors appear only once in a matrix column... +2.13
Replace observations with specific values in multiple columns +0.10
Is there a pmatch equivalent of the which function in R? +0.62
Mutate a column based on a named vector, like a lookup table -2.04
Remove if unit only has one observation +0.13
change weight of edge in igraph network 0.00
How to assign the same vector in every row of a matrix -0.86
How to merge rows that contain NAs into one in r? -1.84
replace certain values of multiple vectors +1.40
Finding the index for 2nd Min value in a data frame -0.29
Logic for filtering dependent on two columns +0.37
fill in missing data for group by unique ID -0.48
Concatenate multiple df in list into different columns of a single df +0.64
Expand dataframe columns -0.66
Subset repeated measure data in R -1.08
Structure multiple binominal columns to one column -0.61
Optimise row wise matrix comparison in R -0.10
Chi-square from tables separated in output -2.32
How can I speed up my Rcpp code, which only carries out simple oper... 0.00
Replace Dataframe Column Values with User Defined Function in R +2.04
move one column down in r -0.10
Filter based on a unique matching condition -0.61
Sample 70% of Data into a new dataframe -0.36
How to sort negative values - dplyr -0.07
Is there a way to create a loop to find specific means in a data set? 0.00
Reformat contigency table in R -1.04
Fined Find common names across several years +0.06
How to index a dataframe that contains lists/vectors as values -0.63
R store formula dynamically +0.54