autoplot_by_species.sp_elev: List plots of species distribution and topography (good for pdf output).

Description

These functions extend autoplot.sp() and autoplot.elev() and return not a single plot but a list of plots. They are particularly useful if you want to print a .pdf file with one plot per page. They automatically plot the variables sp and elev of a ForestGEO-like dataset of class 'sp' or 'sp_elev'.

Create a 'sp' object with:

    object <- sp(DATA-WITH-VARIABLE-sp)

Create a 'sp_elev' object with:

    object <- sp_elev(DATA-WITH-VARIABLE-sp, DATA-WITH-VARIABLE-elev)

See sections Usage and Examples.

Usage

# S3 method for sp_elev
autoplot_by_species(
  object,
  species = "all",
  fill = "black",
  shape = 21,
  point_size = 3,
  contour_size = 0.5,
  low = "blue",
  high = "red",
  hide_color_legend = FALSE,
  bins = NULL,
  add_elevation_labels = TRUE,
  label_size = 3,
  label_color = "grey",
  xyjust = 1,
  fontface = "italic",
  xlim = NULL,
  ylim = NULL,
  custom_theme = NULL,
  ...
)
# S3 method for sp
autoplot_by_species(
  object,
  species = "all",
  fill = "black",
  shape = 21,
  point_size = 3,
  hide_color_legend = FALSE,
  xlim = NULL,
  ylim = NULL,
  custom_theme = NULL,
  ...
)

Value

A list of objects of class "ggplot".

Arguments

object: An object created with sp() or sp_elev().
species: A character vector giving values in the column sp. The output will be a list with as many plots as elements in this vector. The string "all" (default) plots all unique values of sp.
fill: Character; either a color or "sp", which maps each species to a different color.
shape: A number giving point shape (as in graphics::points()). Passed to ggplot2::geom_point().
point_size: A number giving point size. Passed to ggplot2::geom_point().
contour_size: A number giving the size of the contour of elevation lines. Passed to ggplot2::stat_contour() (see ggplot2::geom_contour()).
low, high: A string giving a color of the elevation lines representing low and high elevation.
hide_color_legend: Logical; TRUE hides the color legend.
bins: A number giving the number of elevation lines to plot.
add_elevation_labels: Logical; FALSE hides elevation labels.
label_size, label_color, fontface: A number (label_size) or character string (label_color and fontface) giving the size, colour and fontface of the text labels for the elevation lines.
xyjust: A number to adjust the position of the text labels of the elevation lines.
xlim, ylim: A vector of length 2, for example c(0, 500), giving the minimum and maximum limits of the vertical and horizontal coordinates.
custom_theme: A valid ggplot2::theme(). NULL uses the default theme theme_default().
...: Not used (included for compatibility across methods).

Details

autoplot_by_species(sp_elev(DATA-WITH-VARIABLE-sp) (without elevation data) is equivalent to autoplot_by_species(sp(DATA-WITH-VARIABLE-sp)).

fgeo.plot wraps some functions from the ggplot2 package. For more control you can use ggplot2 directly.

Examples

Run this code

assert_is_installed("fgeo.x")

# Species ---------------------------------------------------------------
# Small dataset with a few species for quick examples
census <- fgeo.x::tree6_3species

# Showing only two species for speed
autoplot_by_species(sp(census))[1:2]

# To print all plots in a .pdf see `?pdf()`
autoplot_by_species(sp(census))

# Species and elevation (optional) ---------------------------------------

# Species and elevation
elevation <- fgeo.x::elevation
autoplot_by_species(sp_elev(census, elevation))