plot.cpr_cpr {cpr}

Control Polygon Reduction Plots

Description

A wrapper around several ggplot2 calls to help evaluate results of a CPR run.

Usage

## S3 method for class 'cpr_cpr'
plot(x, from = 1, to, ...)

Arguments

x

a cpr_cpr object

from

the first index of x to plot

to

the last index of x to plot

...

arguments passed to plot.cpr_cp

Value

a ggplot object

See Also

plot.cpr_cp, cpr, cp

Examples

set.seed(42)
x <- seq(0 + 1/5000, 6 - 1/5000, length.out = 100)
bmat <- bsplines(x, iknots = c(1, 1.5, 2.3, 4, 4.5), bknots = c(0, 6))
theta <- matrix(c(1, 0, 3.5, 4.2, 3.7, -0.5, -0.7, 2, 1.5), ncol = 1)
DF <- data.frame(x = x, truth = as.numeric(bmat %*% theta))
DF$y <- as.numeric(bmat %*% theta + rnorm(nrow(bmat), sd = 0.3))

initial_cp0 <-
  cp(y ~ bsplines(x, iknots = c(1, 1.5, 2.3, 3.0, 4, 4.5), bknots = c(0, 6))
     , data = DF
     , keep_fit = TRUE # default is FALSE
  )
cpr0 <- cpr(initial_cp0)

plot(cpr0)
plot(cpr0, show_spline = TRUE, show_cp = FALSE, color = TRUE, from = 2, to = 4)