plot_obsfa: Plot observations in the coordinate plane Fi-Fj.

In fhernanb/model: This Package Contains Useful Functions for Modeling Regresion

Plot observations in the coordinate plane Fi-Fj.

Description

This function plots the original observations in the coordinate plane Fi-Fj from a factor analysis.

Usage

plot_obsfa(scores, fx = 1, fy = 2, lchar = 3, ...)

Arguments

scores	a matrix obtained from factanal function.
fx	a number to indicate the factor to plot in x axis.
fy	a number to indicate the factor to plot in y axis.
lchar	the number of first characters to identify points, by default is 3.
...	arguments to be passed to methods, such as graphical parameters (see par).

Details

The number in fx and fy must be less or equal number of factors in factanal function.

Value

plot_obsfa function returns a plot with the observations in the coordinate plane Fi-Fj from a factor analysis.

Examples

v1 <- c(1,1,1,1,1,1,1,1,1,1,3,3,3,3,3,4,5,6)
v2 <- c(1,2,1,1,1,1,2,1,2,1,3,4,3,3,3,4,6,5)
v3 <- c(3,3,3,3,3,1,1,1,1,1,1,1,1,1,1,5,4,6)
v4 <- c(3,3,4,3,3,1,1,2,1,1,1,1,2,1,1,5,6,4)
v5 <- c(1,1,1,1,1,3,3,3,3,3,1,1,1,1,1,6,4,5)
v6 <- c(1,1,1,2,1,3,3,3,4,3,1,1,1,2,1,6,5,4)
m1 <- cbind(v1,v2,v3,v4,v5,v6)

scores <- factanal(m1, factors=3, method="mle",
                   scores="Bartlett")$scores

plot_obsfa(scores, fx=1, fy=2, col='blue', pch=20)
plot_obsfa(scores, fx=1, fy=3, col='red', pch=19)

fhernanb/model documentation built on March 3, 2024, 12:15 p.m.