summary.cpr_cpr {cpr}

Summarize a Control Polygon Reduction Object

Description

Summarize a Control Polygon Reduction Object

Usage

## S3 method for class 'cpr_cpr'
summary(object, ...)

Arguments

object

a cpr_cpr object

...

pass through

Value

a data.frame with the attribute elbow which is a programmatic attempt to identify a useful trade-off between degrees of freedom and fit statistic.

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_cp <-
  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_cp)
s <- summary(cpr0)
s
plot(s, type = "rse")