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plot_density: Univariate Density Plot (Fill Group, Black Outline)

Source: R/plot_density.R
plot_density.Rd

Create a density plot with group color as fill, and fixed black border for all curves.

Usage

plot_density(
  data,
  x,
  group = NULL,
  facet = NULL,
  palette = c("#1b9e77", "#d95f02", "#7570b3"),
  alpha = 0.7,
  base_size = 14,
  xlab = NULL,
  ylab = "Density",
  title = NULL,
  legend_pos = "right",
  adjust = 1,
  show_mean = FALSE,
  mean_line_color = "red",
  add_hist = FALSE,
  hist_bins = NULL,
  add_rug = FALSE,
  theme = "minimal"
)

Arguments

data

data.frame. Input dataset.

x

Character. Name of numeric variable to plot.

group

Character. Grouping variable for fill color. (Optional)

facet

Character. Faceting variable. (Optional)

palette

Character vector. Fill color palette, e.g. c("#FF0000","#00FF00","#0000FF"). Will be recycled as needed. Cannot be a palette name. Default: c("#1b9e77", "#d95f02", "#7570b3")

alpha

Numeric. Fill transparency. Default: 0.7.

base_size

Numeric. Theme base font size. Default: 14.

xlab

Character. X-axis label. Default: NULL (uses variable name).

ylab

Character. Y-axis label. Default: "Density".

title

Character. Plot title. Default: NULL.

legend_pos

Character. Legend position. One of "right", "left", "top", "bottom", "none". Default: "right".

adjust

Numeric. Density bandwidth adjust. Default: 1.

show_mean

Logical. Whether to add mean line. Default: FALSE.

mean_line_color

Character. Mean line color. Default: "red".

add_hist

Logical. Whether to add histogram layer. Default: FALSE.

hist_bins

Integer. Number of histogram bins. Default: NULL (auto).

add_rug

Logical. Whether to add rug marks at bottom. Default: FALSE.

theme

Character. ggplot2 theme style. One of "minimal", "classic", "bw", "light", "dark". Default: "minimal".

Value

ggplot object.