Description

The USArmyRoofs data frame has 153 observations of roof sections of US Army bases and 2 columns, age and fci. This is Example 2 of He & Ng (1999).

Usage

Format

This data frame contains the following columns:

age

numeric vector giving the roof's age in years.

fci

numeric, giving the FCI, the flash condition index, i.e., the percentage of flashing which is in good condition.

Source

From shar file available from http://www.cba.nau.edu/pin-ng/cobs.html

References

He, X. and Ng, P. (1999) COBS: Qualitatively Constrained Smoothing via Linear Programming; Computational Statistics 14, 315–337.

Examples