crazybilly

crazybilly has asked 59 questions and find answers to 17 problems.

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doing data analysis, reporting and modeling at a small, private university.

crazybilly questions

What is select_at() for?
Is there a dplyr way to use REGEXP within a database query?
Filter based on data in a nested data frame column using purrr
Is there a way to use dplyr::bind_rows without collecting data frames from the database?
How to join a data frame to itself within a dplyr chain?
How do I use the ebook functions epub_book and kindlegen() for existing bookdown documents?
Purrr::map_df() drops NULL rows
Is there an equivalent of "&" in R's regular expressions for backreference to entire match?
Count how many values in some cells of a row are not NA (in R)
Using any() vs | in dplyr::mutate

crazybilly answers

R: Convert text (character) into integer type in a data frame
R: Read in random rows from file using fread or equivalent?
Replace special character in data frame
What is select_at() for?
Switch MDI to SDI in RStudio
Is there a way to use dplyr::bind_rows without collecting data frames from the database?
How to control new variables' names after tidyr's spread?
How to join a data frame to itself within a dplyr chain?
Purrr::map_df() drops NULL rows
ifelse & grepl commands when using dplyr for SQL in-db operations