pillar: Object for formatting a vector suitable for tabular display

In hadley/pillar: Coloured Formatting for Columns

Object for formatting a vector suitable for tabular display

Description

pillar() creates an object that formats a vector. The output uses one row for a title (if given), one row for the type, and vec_size(x) rows for the data.

Usage

pillar(x, title = NULL, width = NULL, ...)

Arguments

x	A vector to format.
title	An optional title for the column. The title will be used "as is", no quoting will be applied.
width	Default width, optional.
...	Passed on to pillar_shaft().

Details

A pillar consists of arbitrary components. The pillar() constructor uses title, type, and data.

• title via new_pillar_title()

• type via new_pillar_type(), which calls type_sum() internally

• data via pillar_shaft()

All components are formatted via format() when displaying the pillar. A width argument is passed to each format() call.

As of pillar 1.5.0, pillar() returns NULL if the width is insufficient to display the data.

Examples

x <- 123456789 * (10^c(-1, -3, -5, NA, -8, -10))
pillar(x)
pillar(-x)
pillar(runif(10))
pillar(rcauchy(20))

# Special values are highlighted
pillar(c(runif(5), NA, NaN, Inf, -Inf))

# Very wide ranges will be displayed in scientific format
pillar(c(1e10, 1e-10), width = 20)
pillar(c(1e10, 1e-10))

x <- c(FALSE, NA, FALSE, FALSE, TRUE, FALSE, FALSE, TRUE, FALSE, TRUE)
pillar(x)

x <- c("This is string is rather long", NA, "?", "Short")
pillar(x)
pillar(x, width = 30)
pillar(x, width = 5)

date <- as.Date("2017-05-15")
pillar(date + c(1, NA, 3:5))
pillar(as.POSIXct(date) + c(30, NA, 600, 3600, 86400))

hadley/pillar documentation built on Dec. 19, 2024, 6:22 a.m.