geom_node {chessboard} | R Documentation |
Highlight a node on a chessboard
Description
Highlights a node (cell) on a chessboard plotted with gg_chessboard()
.
Usage
geom_node(nodes, focus)
Arguments
nodes |
a |
focus |
an |
Value
A list of two geom_point
that must be added to a ggplot2
object.
Examples
library("chessboard")
# Two-dimensional sampling ----
sites_infos <- expand.grid("transect" = 1:3, "quadrat" = 1:5)
nodes <- create_node_labels(data = sites_infos,
transect = "transect",
quadrat = "quadrat")
gg_chessboard(nodes) +
geom_node(nodes, "2-3")
# One-dimensional sampling (only transects) ----
sites_infos <- data.frame("transect" = 1:5)
nodes <- create_node_labels(data = sites_infos,
transect = "transect")
gg_chessboard(nodes) +
geom_node(nodes, "3-1")
[Package chessboard version 0.1 Index]