44  xyVector

ImportantDisclaimer

These packages (Note 1) are a one-person project undergoing rapid evolution. Backward compatibility (per Hadley Wickham) is provided as a courtesy rather than a guarantee.

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Package splines (R version 4.5.3 (2026-03-11)) defines an S3 class 'xyVector'. Listing 44.1 summarizes the S3 methods for the class 'xyVector' in package splines,

Listing 44.1: S3 methods splines*::*.xyVector
Code 
library('splines')
.S3methods(class = 'xyVector', all.names = TRUE) |> 
  attr(which = 'info', exact = TRUE)
#                        visible                from       generic  isS4
# as.data.frame.xyVector   FALSE registered S3method as.data.frame FALSE
# asVector.xyVector        FALSE registered S3method      asVector FALSE
# plot.xyVector            FALSE registered S3method          plot FALSE
Note

The examples in Chapter 44

library(groupedHyperframe)

44.1 Cumulative Average Vertical Height of Trapzoidal Integration

The S3 method visualize_vtrapz.xyVector() (Section 11.3, Table 11.2) is

  • a simple wrapper of the S3 method visualize_vtrapz.numeric();
  • the workhorse function of the S3 method visualize_vtrapz.spline().

Example(s) of the S3 method visualize_vtrapz.xyVector() are Listing 11.9.