tf (version 0.3.4)

tf_zoom: Functions to zoom in/out on functions

Description

These are used to redefine or restrict the domain of tf objects.

Usage

tf_zoom(f, begin, end, ...)
# S3 method for tfd
tf_zoom(f, begin = tf_domain(f)[1], end = tf_domain(f)[2], ...)
# S3 method for tfb
tf_zoom(f, begin = tf_domain(f)[1], end = tf_domain(f)[2], ...)
# S3 method for tfb_fpc
tf_zoom(f, begin = tf_domain(f)[1], end = tf_domain(f)[2], ...)

Value

an object like f on a new domain (potentially). Note that regular functional data and functions in basis representation will be turned into irregular tfd-objects iff begin or end are not scalar.

Arguments

f

a tf-object

begin

numeric vector of length 1 or length(f). Defaults to the lower limit of the domain of f.

end

numeric vector of length 1 or length(f). Defaults to the upper limit of the domain of f.

...

not used

See Also

Other tidyfun utility functions: in_range(), tf_arg()

Examples

x <- tf_rgp(10)
plot(x)
tf_zoom(x, 0.5, 0.9)
tf_zoom(x, 0.5, 0.9) |> lines(col = "red")
tf_zoom(x, seq(0, 0.5, length.out = 10), seq(0.5, 1, length.out = 10)) |>
  lines(col = "blue", lty = 3)