plotmixt {ks} | R Documentation |
Plot for 2- and 3-dimensional normal and t-mixture density functions.
plotmixt(mus, Sigmas, props, dfs, dist="normal", ...)
mus |
(stacked) matrix of mean vectors |
Sigmas |
(stacked) matrix of variance matrices |
props |
vector of mixing proportions |
dfs |
vector of degrees of freedom |
dist |
"normal" - normal mixture, "t" - t-mixture |
... |
other graphics parameters |
See the graphics parameter options in ?plot.kde
.
2-d plot is sent to graphics window; 3-d plot to RGL window.
## bivariate example mus <- rbind(c(0,0), c(-1,1)) Sigma <- matrix(c(1, 0.7, 0.7, 1), nr=2, nc=2) Sigmas <- rbind(Sigma, Sigma) props <- c(1/2, 1/2) plotmixt(mus, Sigmas, props) plotmixt(mus, Sigmas, props, dfs=c(3,8), dist="t") ## trivariate example mus <- rbind(c(0,0,0), c(-1,1,1)) Sigma <- matrix(c(1, 0.7, 0.7, 0.7, 1, 0.7, 0.7, 0.7, 1), nr=3, nc=3) Sigmas <- rbind(Sigma, Sigma) props <- c(1/2, 1/2) plotmixt(mus, Sigmas, props) plotmixt(mus, Sigmas, props, dfs=c(3,8), dist="t")