plotellipse {SensoMineR} | R Documentation |
Plot confidence ellipses.
plotellipse(mat, alpha = 0.05, coord = c(1,2), eig, cex = 1, color = NULL)
mat |
Matrix with all the points |
alpha |
the confidence level of the ellipses |
coord |
a length 2 vector specifying the components to plot |
eig |
a matrix with the component of the factor analysis (in row) and the eigenvalues, the inertia and the cumulative inertia for each component. Typically, the eig output of the construct.axes function |
cex |
cf. function par in the graphics package |
color |
a vector with the colors used; by default there are 35 colors defined |
François Husson
data(chocolates) donnee <- cbind.data.frame(sensochoc[,c(1,4,5:18)]) axe <- construct.axes(donnee, scale.unit = TRUE) simul <- simulation(axe) plotellipse (simul, alpha = 0.05, eig = signif(axe$eig,4)) ####################################### donnee <- cbind.data.frame(sensochoc[,c(1,4,5:18)]) axe <- construct.axes(donnee, group = c(6,8), name.group = c("A-F","T-S"),scale.unit = TRUE) simul <- simulation(axe, nbgroup = (ncol(axe$partiel)-2)/(ncol(axe$moyen)-2)) plotellipse (simul, alpha = 0.05, eig = signif(axe$eig,4))