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Andrew

Rating
1491.99 (4,376,349th) 		Reputation
428 (309,635th)
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Title Δ
Remove trailing (last) rows with NAs in all columns -1.78
How do I reshape a data.frame to long format with multiple value co... 0.00
Refer to a variable by pasting strings then make changes and see th... +2.12
Insert some characters in a specific place with a regex +1.15
Remove automatically all spaces from column names using read_excel +1.17
Vectorised way to count new events +0.51
starts / begins with multiple columns grepl/paste0 -0.31
Locate position of first number in string [R] -1.25
Aggregate and count identical rows in r +0.03
Replace several values and keep others same efficiently in R +2.42
Find cell with grepl & which 0.00
R: Replace conditioned column value with random sample of remaining... 0.00
efficient way to rowwise mutate with sample -0.08
R: How do I split an email into parts when the emails have multiple... -0.04
How to Calculate Summary Statistics (Standard Error, and Upper and... 0.00
extract the all the rows before a particular comment for each id -R -1.70
How to remove 99th percentile outliers in R -0.74
count even numbers in a list or vector in R +0.57
Convert all columns to lower case in data.table 0.00
Rename specific pattern of multiple files with another specific pat... -0.43
Min and max for each row with dataframe in R +0.21
replace by threshold in df in R +2.58
Get mean and interval from simulated var 0.00
splitting strings with regex in R? -1.27
Write values into brackets for each row 0.00
Read first column of .sav file in R 0.00
R tidyverse how to do two pivot_longer after each other instead of... 0.00
Assign value labels as string values in R 0.00
How to reconcile afex mixed-effects model output with sjPlot visual... 0.00
Combine string elements within a list into one variable in R +0.29
Can't convert dataframe to Stata using foreign or haven 0.00
Selecting the highest value from a choice of multiple columns, many... -0.96
negative-lookahead in gsub 0.00
Select function for multiple data frames in R 0.00
Keeping Only Negative Values Across Multiple Columns in Data Frame 0.00
Remove rows in data.frame when the entire row values match a regex,... 0.00
fuzzy extracting names (stored in a vector) from a text column in R 0.00
How to delete grepl-unmatched column values in R 0.00
How to store the values that match the condition in a separate colu... 0.00
Map dplyr function to each combination of variable pairs in an R da... -1.07
How to capture all successfull sessions? 0.00
How to create two headers table with expss +1.11
delete string before some "." r -1.93
How can I convert a non-numeric variable column into two numeric va... +0.14
split list into lists each of length x -2.10
Delete character vectors from df that contain the same string -0.72
efficiently convert two or more columns from dataframe into row-wis... -0.51
Download multiple dataframes in multiple sheets of the same excel f... +0.50
Return years of first and last non-NA values for each column R -1.19
R combining duplicate rows by ID with different column types in a d... +1.05