This function plots the profile likelihood for the shape parameter of the Matern covariance function using the output from shape.matern function.
# S3 method for shape.matern
plot(x, plot.spline = TRUE, ...)an object of class 'shape.matern' obtained as result of a call to shape.matern
logical; if TRUE an interpolating spline of the profile likelihood is added to the plot.
further arguments passed to plot.
The function does not return any value.