`xyVector`

ObjectCreate 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.

`xyVector(x, y)`

x

a numeric vector

y

a numeric vector of the same length as `x`

An object of class `xyVector`

with components

a numeric vector

a numeric vector of the same length as `x`

# NOT RUN { 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 # }