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This function plots the fit obtained using a free-knot spline.
# S3 method for freekt plot(x, xfit = x@x, linecolor = "blue", lwd = 1, lty = 1, …)
An object of class "freekt" obtained by using one of the fitting algorithms.
freekt
A vector of x values at which to plot the fitted values. Defaults to the x values of the data.
The color of the line. Defaults to blue.
The line width. It is passed to the lines function. Defaults to 1.
lines
The line type. It is passed to the lines function. Defaults to 1.
Additional arguments to be passed to the plot function.
plot
A plot of the data, together with the spline estimator.
fitted.freekt to compute the fitted values.
fitted.freekt
# NOT RUN { x <- 0:30/30 truey <- x*sin(10*x) set.seed(10556) y <- truey + rnorm(31, 0, 0.2) xy.freekt <- freelsgen(x, y, degree = 2, numknot = 2, 555) plot.freekt(xy.freekt, xfit = 0:1000/1000) # }
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