# R: Carbon Monoxide Transfer

co.transfer {boot} | R Documentation

## Carbon Monoxide Transfer

### Description

The `co.transfer` data frame has 7 rows and 2 columns. Seven smokers with chickenpox had their levels of carbon monoxide transfer measured on entry to hospital and then again after 1 week. The main question being whether one week of hospitalization has changed the carbon monoxide transfer factor.

### Usage

    co.transfer

### Format

This data frame contains the following columns:

`entry`
  Carbon monoxide transfer factor on entry to hospital.
`week`
  Carbon monoxide transfer one week after admittance to hospital.

### Source

The data were obtained from

Hand, D.J., Daly, F., Lunn, A.D., McConway, K.J. and Ostrowski, E (1994) A Handbook of Small Data Sets. Chapman and Hall.

### References

Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press.

Ellis, M.E., Neal, K.R. and Webb, A.K. (1987) Is smoking a risk factor for pneumonia in patients with chickenpox? British Medical Journal, 294, 1002.

[Package boot version 1.2-29 Index]