cpr (version 0.4.1)

plot.cpr_bs: Plot B-spline Basis

Description

Wrapper around several ggplot2 calls to plot a B-spline basis

Usage

# S3 method for cpr_bs
plot(x, ..., show_xi = TRUE, show_x = FALSE, color = TRUE, digits = 2, n = 100)

Value

a ggplot

Arguments

x

a cpr_bs object

show_xi

logical, show the knot locations, using the Greek letter xi, on the x-axis

show_x

logical, show the x values of the knots on the x-axis

color

logical, if TRUE (default) the splines are plotted in color. If FALSE all splines are black lines.

digits

number of digits to the right of the decimal place to report for the value of each knot.

n

number of values to use to plot the splines, defaults to 100

...

not currently used

See Also

bsplines

Examples

bmat <- bsplines(seq(-3, 2, length = 1000), iknots = c(-2, 0, 0.2))
plot(bmat, show_xi = TRUE,  show_x = TRUE)
plot(bmat, show_xi = FALSE, show_x = TRUE)
plot(bmat, show_xi = TRUE,  show_x = FALSE)  ## Default
plot(bmat, show_xi = FALSE, show_x = FALSE)
plot(bmat, show_xi = FALSE, show_x = FALSE)
plot(bmat, show_xi = FALSE, show_x = FALSE, color = FALSE)

bmat <- bsplines(seq(0, 10, length.out = 1000), bknots = c(1, 9))
plot(bmat)