Plot of supplementary individuals

Adds supplementary individuals to a MCA cloud of the individuals

ggadd_supind(p, resmca, dfsup, axes = c(1,2), 
col = "black", textsize = 5, pointsize = 2)

Arguments

p

ggplot2 object with the cloud of variables

resmca

object of class MCA, speMCA, csMCA, stMCA or multiMCA.

dfsup

data frame with the supplementary individuals. It must have the same factors as the data frame used as input for the initial MCA.

axes

numeric vector of length 2, specifying the dimensions (axes) to plot (default is c(1,2))

col

color for the labels and points of the individuals (default is black)

textsize

Size of the labels of the individuals. Default is 5.

pointsize

Size of the points of the individuals. If NULL, only labels are plotted. Default is 2.

Details

The function uses the row names of dfsup as labels for the individuals.

Author

Nicolas Robette

See also

supind, ggcloud_indiv

Examples

# specific MCA of Music example data set
data(Music)
rownames(Music) <- paste0("i", 1:nrow(Music))
junk <- c("FrenchPop.NA", "Rap.NA", "Rock.NA", "Jazz.NA", "Classical.NA")
mca <- speMCA(Music[,1:5], excl = junk)
# adds individuals 1, 20 and 300 as supplementary individuals 
# onto the cloud of individuals
p <- ggcloud_indiv(mca, col = "lightgrey")
ggadd_supind(p, mca, Music[c(1,20,300), 1:5])