# xyVector

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##### Construct an xyVector Object

Create an object to represent a set of x-y pairs. The resulting object can be treated as a matrix or as a data frame or as a vector. When treated as a vector it reduces to the y component only.

The result of functions such as predict.spline is returned as an xyVector object so the x-values used to generate the y-positions are retained, say for purposes of generating plots.

Keywords
models
##### Usage
xyVector(x, y)
##### Arguments
x
a numeric vector
y
a numeric vector of the same length as x
##### Value

• An object of class xyVector with components
• xa numeric vector
• ya numeric vector of the same length as x

• xyVector
##### Examples
library(splines) require(stats); require(graphics) ispl <- interpSpline( weight ~ height, women ) weights <- predict( ispl, seq( 55, 75, length.out = 51 )) class( weights ) plot( weights, type = "l", xlab = "height", ylab = "weight" ) points( women$height, women$weight ) weights
Documentation reproduced from package splines, version 3.3, License: Part of R @VERSION@

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