R: Roof Quality in US Army Bases

USArmyRoofs {cobs} | R Documentation

## Roof Quality in US Army Bases

### 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

    data(USArmyRoofs)

### 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

    data(USArmyRoofs)
    plot(fci ~ age, data = USArmyRoofs, main = "US Army Roofs data")

[Package cobs version 1.3-3 Index]