cubic: A Data Set for the Example of the Qprog Function
Description
This data set is used for the example of the qprog function.
Usage
data(cubic)
Arguments
Format
A data frame with 50 observations on the following 2 variables.
x
The predictor vector.
y
The response vector.
Details
We use the qprog function to fit a constrained cubic to this data set. The constraint is that the true regression is increasing, convex and nonnegative.