pixiedust (version 0.8.3)

pixieply: Apply Functions Over `dust_list` Objects

Description

The sprinkle methods work with dust_list objects very naturally, but medleys pose a slightly more difficult problem. Medleys are intended to be predefined collections of sprinkles that reduce the time required to format a table with a particular look and style. It seems counter-productive to expect a user to define each of her or his medleys as a method that can work with both dust and dust_list objects. pixieply is a wrapper to lapply that preserves the dust_list class of the object.

pixiemap provides functionality to apply differing sprinkles over each element of a dust_list. The most common example is probably adding a unique caption to each table.

Usage

pixieply(X, FUN, ...)
pixiemap(X, FUN, ..., MoreArgs = NULL, SIMPLIFY = FALSE, USE.NAMES = TRUE)

Arguments

X

An object of class dust_list.

FUN

A function to apply to each element of X

...

Additional arguments to pass to FUN

MoreArgs

a list of other arguments to FUN

SIMPLIFY

logical or character string; attempt to reduce the result to a vector, matrix or higher dimensional array; see the simplify argument of sapply

USE.NAMES

logical; use names if the first ... argument has names, or if it is a character vector, use that character vector as the names.

Examples

# NOT RUN {
#* This example will only display the last table 
#* in the viewer pane.  To see the full output,
#* run this example in an Rmarkdown document.
x <- split(mtcars, list(mtcars$am, mtcars$vs))
dust(x) %>%
  sprinkle_print_method("html") %>%
  pixieply(medley_bw)
# }
# NOT RUN {
# }
# NOT RUN {
#* This is the full text of an RMarkdown script 
#* for the previous example.
---
title: "Pixieply"
output: html_document
---

```{r}
library(pixiedust)
x <- dplyr::group_by(mtcars, am, vs)
dust(x, ungroup = FALSE) %>%
  sprinkle_print_method("html") %>%
    pixieply(medley_bw)
```
# }
# NOT RUN {
# }

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