dkprofile: cumulative profile, its slope and the area under its curve

In doolkit: Exploration of Dental Surface Topography

cumulative profile, its slope and the area under its curve

Description

A function for drawing the cumulative profile of a variable, computing the area under the curve and the slope of the profile at the arithmetic mean of the variable.

Usage

dkprofile(
  x,
  type = "cartesian",
  xlab = paste("cumulated frequency (%)"),
  ylab = "",
  main = "",
  col = "red",
  alpha = 1,
  size = 1,
  linetype = "solid"
)

Arguments

x	a numeric vector
type	a character string indicating the type of coordinates to use ("cartesian", "polar" etc.). Currently only "cartesian" is supported.
xlab	title of the x axis
ylab	title of the y axis
main	main title of the plot
col	the color of data points
alpha	numeric indicating the alpha value of data points
size	the size of data points
linetype	the type of line to be traced (see ggplot2)

Value

A list containing (1) the area under the curve of the profile, (2) the profile to be drawn, and (3) the slope of the profile at the mean of the variable.

References

doi: 10.3389/fphys.2017.00524Thiery et al. (2017)

Examples

#Elevation (hypsometric) profile (see Thiery et al., 2017):
dkprofile(elev(dkpongo$OES), main = "Elevation profile - Pongo pygmaeus",
ylab = "Elevation (%)", col = "#0072B2", linetype = "solid")

#Enamel-dentine distance (pachymetric) profile:
dkprofile(oedist(dkpongo$OES, dkpongo$EDJ),
main = "Elevation profile - Pongo pygmaeus", ylab = "Distance (%)",
col = "#F0E442", linetype = "dashed")

#Curvature (kurtometric) profile:
dkprofile(Rvcg::vcgCurve(dkpongo$OES)$meanitmax,
main = "Curvature profile - Pongo pygmaeus", ylab = "Curvature (%)",
col = "#D55E00", linetype = "dotted")

doolkit documentation built on Feb. 16, 2023, 11 p.m.