plot_fitted: SSFA plot

In ssfa: Spatial Stochastic Frontier Analysis

SSFA plot

Description

This function allows to plot the data and the fitted values obtained by SSFA model.

Usage

plot_fitted(x, y, object, xlab, ylab, main, ...)

Arguments

x	the x coordinates of points in the plot.
y	the y coordinates of points in the plot.
object	an object of class ssfa.
xlab	a title for the x axis.
ylab	a title for the y axis.
main	an overall title for the plot.
...	arguments to be passed to methods, such as graphical parameters (see par).

See Also

plot

Examples

library(ssfa) 
data(SSFA_example_data)
data(Italian_W)

#### SFA and SSFA comparison 
sfa <- ssfa(log_y ~ log_x, data = SSFA_example_data, data_w=Italian_W, 
             form = "production", par_rho=FALSE)
ssfa <- ssfa(log_y ~ log_x, data = SSFA_example_data, data_w=Italian_W, 
 form = "production", par_rho=TRUE)

sfa_fitted <- fitted.ssfa(sfa)
plot_fitted(SSFA_example_data$log_x, SSFA_example_data$log_y, ssfa)
lines(sort(SSFA_example_data$log_x), sfa_fitted[order(SSFA_example_data$log_x)],col="red")

ssfa documentation built on Aug. 28, 2023, 5:09 p.m.