plot.kdde {ks} | R Documentation |
Plot for kernel density derivative estimate for 1- to 3-dimensional data.
## S3 method for class 'kdde' plot(x, ...)
x |
an object of class |
... |
other graphics parameters:
and those used in |
For kdde
objects, the function headers for the different dimensional data are
## univariate plot(fhat, ylab="Density derivative function", ...) ## bivariate plot(fhat, which.deriv.ind=1, col, cont=c(25,50,75), abs.cont, display="slice", zlab="Density derivative function", ...)
Plots for 1-d and 2-d are sent to graphics window. Plot for 3-d is sent to RGL window (not yet implemented).
## univariate example x <- rnorm.mixt(n=100, mus=1, sigmas=1, props=1) fhat1 <- kdde(x=x, deriv.order=1) plot(fhat1) ## bivariate example data(unicef) fhat2 <- kdde(x=unicef, deriv.order=2) plot(fhat2, which.deriv.ind=2, display="persp", phi=20) plot(fhat2, which.deriv.ind=2, display="filled.contour2") ## d^2 f/(dx dy) ## purple=-ve, green=zero, beige=+ve