group.pdf: Probability density plot by group

In jeffreyevans/spatialEco: Spatial Analysis and Modelling Utilities

Probability density plot by group

Description

Creates a probability density plot of y for each group of x

Usage

group.pdf(
  x,
  y,
  col = NULL,
  lty = NULL,
  lwd = NULL,
  lx = "topleft",
  ly = NULL,
  ...
)

Arguments

x	Numeric, character or factorial vector of grouping variable (must be same length as y)
y	Numeric vector (density variable)
col	Optional line colors (see par, col)
lty	Optional line types (see par, lty)
lwd	Optional line widths (see par, lwd)
lx	Position of legend (x coordinate or 'topright', 'topleft', 'bottomright', 'bottomleft')
ly	Position of legend (y coordinate)
...	Additional arguments passed to plot

Value

Plot of grouped PDF's

Author(s)

Jeffrey S. Evans <jeffrey_evans<at>tnc.org>

References

Simonoff, J. S. (1996). Smoothing Methods in Statistics. Springer-Verlag, New York.

Examples

y=dnorm(runif(100))
x=rep(c(1,2,3), length.out=length(y)) 
group.pdf(x=as.factor(x), y=y, main='Probability Density of y by group(x)', 
ylab='PDF', xlab='Y', lty=c(1,2,3))

jeffreyevans/spatialEco documentation built on April 4, 2024, 10:53 a.m.