talk_arrange: Talk to Arrange a Data set

In muschellij2/talkr: Talk through Data Analysis

Description

Talk to Arrange a Data set

Usage

talk_arrange(.data, cmd, verbose = FALSE, ...)

talk_arrange_expr(data_colnames, cmd, ...)

talk_process_arrange_cmd(cmd)

Arguments

.data	The data set/data.frame to perform the operation.
cmd	Command to perform on the data set.
verbose	print diagnostic output
...	additional arguments to pass to talk_get_colnames
data_colnames	column names of the data

Value

A data.frame or list of them if length(cmds) > 1.

Examples

library(tibble)
library(dplyr)
df = mtcars %>%
  rownames_to_column(var = "car")

cmds = c(
    "Sort by  mpg",
    "Sort by  column    mpg  ",
    "arrange by column 5",
    "arrange by gear",
    "arrange by columns 4 and 5",
    "arrange by columns 4 and 5, mpg decreasing",
    # duplciate
    "arrange by columns 2 and 5, mpg decreasing",
    "arrange by columns 4, 5, and 6",
    "sort by mpg descending",
    "sort by MPG ascending",
    "sort by mpg ascending",
    "sort by mpg low to high")
 results = lapply(cmds, talk_arrange, .data = df)
df = df %>%
  rename(GEAR = gear)
  cmd = "arrange by gear descending"
 data_colnames = df
 gear = df %>%
 talk_arrange("arrange by gear")
testthat::expect_true(!is.unsorted(gear$GEAR))
 gear = df %>%
 talk_arrange("arrange by gear decreasing")
testthat::expect_true(all(diff(gear$GEAR) <= 0))

muschellij2/talkr documentation built on Jan. 20, 2020, 7:49 p.m.