glyphs: Create the data needed to generate a glyph plot.

Description Usage Arguments Author(s) Examples

View source: R/gglyph.R

Description

Create the data needed to generate a glyph plot.

Usage

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glyphs(data, x_major, x_minor, y_major, y_minor, polar = FALSE,
  height = ggplot2::rel(0.95), width = ggplot2::rel(0.95),
  y_scale = identity, x_scale = identity)

Arguments

data

A data frame containing variables named in x_major, x_minor, y_major and y_minor.

x_major, x_minor, y_major, y_minor

The name of the variable (as a string) for the major and minor x and y axes. Together, each unique

polar

A logical of length 1, specifying whether the glyphs should be drawn in polar coordinates. Defaults to FALSE.

height, width

The height and width of each glyph. Defaults to 95% of the resolution of the data. Specify the width absolutely by supplying a numeric vector of length 1, or relative to the

y_scale, x_scale

The scaling function to be applied to each set of minor values within a grid cell. Defaults to identity so that no scaling is performed.

Author(s)

Di Cook [email protected], Heike Hofmann, Hadley Wickham

Examples

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 data(nasa)
 nasaLate <- nasa[
   nasa$date >= as.POSIXct("1998-01-01") &
   nasa$lat >= 20 &
   nasa$lat <= 40 &
   nasa$long >= -80 &
   nasa$long <= -60
 , ]
 temp.gly <- glyphs(nasaLate, "long", "day", "lat", "surftemp", height=2.5)
 ggplot2::ggplot(temp.gly, ggplot2::aes(gx, gy, group = gid)) +
   add_ref_lines(temp.gly, color = "grey90") +
   add_ref_boxes(temp.gly, color = "grey90") +
   ggplot2::geom_path() +
   ggplot2::theme_bw() +
   ggplot2::labs(x = "", y = "")

Example output

Using width 2.38

GGally documentation built on May 18, 2018, 1:08 a.m.