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#' Contour ggplot Parameters
#'
#' @template args-he
#' @param graph_params Other graphical parameters
#' @param ... Additional arguments
#'
#' @import ggplot2
#' @keywords internal
#'
contour_ggplot_params <- function(he,
graph_params,
...) {
ext_params <- ceplane_geom_params(...)
graph_params$legend <-
make_legend_ggplot(he, graph_params$pos_legend)
if (!is.null(graph_params$nlevels)) {
nlevels <- round(graph_params$nlevels)
if (graph_params$nlevels < 0)
nlevels <- 10
if (graph_params$nlevels == 0)
nlevels <- 1
}
default_params <-
list(
quadrant = quadrant_params(he, graph_params),
size = rel(3.5),
contour = list(
aes_string(colour = "comparison"),
contour_var = "ndensity",
adjust = 2,
size = 1,
bins = 5),
icer = list(
data = data.frame(x = colMeans(he$delta_e),
y = colMeans(he$delta_c)),
mapping = aes(x = .data$x, y = .data$y),
color = "red",
size = convert_pts_to_mm(0.8),
inherit.aes = FALSE),
point = list(
shape = rep(19, he$n_comparisons),
size = 4),
line = list(
color = "black"))
params <-
modifyList(default_params,
graph_params) %>%
modifyList(ext_params)
params$quad_txt <-
data.frame(
x = c(params$xlim[2], params$xlim[1], params$xlim[1], params$xlim[2]),
y = c(params$ylim[2], params$ylim[2], params$ylim[1], params$ylim[1]),
label = c(params$quadrant$t1, params$quadrant$t2,
params$quadrant$t3, params$quadrant$t4),
hjust = c(1, 0, 0, 1))
params
}
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