deschen

deschen has asked 30 questions and find answers to 14 problems.

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deschen questions

rename_with doesn't work in purrr::map2 - Error "! the ... list contains fewer than 2 elements"
Creating data frame from list of lists
Dynamic `case_when` that allows for different number of conditions and conditions itself
tidyverse calculate ranking per row across several columns
bind_rows on a list fails if some sub-list elements are empty. Why?
Create ROC curve manually from data frame
index/match equivalent in R for merging data frames in a tidy way
tidyverse mutate with an external vector whose elements are column values in a data frame
print option `n = Inf` now leads to an error "invalid 'na.print' specification" [closed]
tidyverse combine a lagged row value + certain character if condition is met

deschen answers

Validate that a part of a dataframe is groupwise identical to a dataframe
How to drop duplicated column names in nested tibbles before unnesting
Two Random Numbers Without Repeating
Quick way to combine several pairs of columns into one column for each pair [duplicate]
dplyr how to calculate percent of multiple columns and output columns with custom names
How do I generate a new column using a conditional which evaluates values against a vector?
From two dataframes with related data, fill columns in the first one (occurrences of a value in 2nd) and merge info
Join list to dataframe in R
tidyverse pivot_longer several sets of columns, but avoid intermediate mutate_wider steps [duplicate]
storing an R function output list in a column of lists for further processing