rotate_df: Rotate a data frame

In strengejacke/sjmisc: Data and Variable Transformation Functions

Rotate a data frame

Description

This function rotates a data frame, i.e. columns become rows and vice versa.

Usage

rotate_df(x, rn = NULL, cn = FALSE)

Arguments

x	A data frame.
rn	Character vector (optional). If not NULL, the data frame's rownames will be added as (first) column to the output, with rn being the name of this column.
cn	Logical (optional), if TRUE, the values of the first column in x will be used as column names in the rotated data frame.

Value

A (rotated) data frame.

Examples

x <- mtcars[1:3, 1:4]
rotate_df(x)
rotate_df(x, rn = "property")

# use values in 1. column as column name
rotate_df(x, cn = TRUE)
rotate_df(x, rn = "property", cn = TRUE)

# also works on list-results
library(purrr)

dat <- mtcars[1:3, 1:4]
tmp <- purrr::map(dat, function(x) {
  sdev <- stats::sd(x, na.rm = TRUE)
  ulsdev <- mean(x, na.rm = TRUE) + c(-sdev, sdev)
  names(ulsdev) <- c("lower_sd", "upper_sd")
  ulsdev
})
tmp
as.data.frame(tmp)
rotate_df(tmp)

tmp <- purrr::map_df(dat, function(x) {
  sdev <- stats::sd(x, na.rm = TRUE)
  ulsdev <- mean(x, na.rm = TRUE) + c(-sdev, sdev)
  names(ulsdev) <- c("lower_sd", "upper_sd")
  ulsdev
})
tmp
rotate_df(tmp)

strengejacke/sjmisc documentation built on June 29, 2023, 4:28 p.m.