ozone | R Documentation |

This is the ozone data used in Breiman and Friedman (1985). This dataset contains 330 observations, and each observation is a daily measurement.

```
data(ozone)
```

ozone | Ozone reading |

temp | Temperature (degree C). minimum 25 and maximum 93 in original scale. |

invHt | Inversion base height (feet). minimum 111 and maximum 5000 in original scale. |

press | Pressure gradient (mm Hg). minimum -69 and maximum 107 in original scale. |

vis | Visibility (miles). minimum 0 and maximum 350 in original scale. |

milPress | 500 millibar pressure height (m). minimum 5320 and maximum 5950 in original scale. |

hum | Humidity (percent). minimum 19 and maximum 93. |

invTemp | Inversion base temperature (degrees F). minimum -25 and maximum 332 in original scale. |

wind | Wind speed (mph). minimum 0 and maximum 21 in original scale. |

All the variables, except for the response, have been scaled to [0,1] interval. To transform back to the original scale, use the formula:

`x=min+(max-min)*z.`

Breiman, L. and Friedman, J. (1985), "Estimating Optimal Transformations for Multiple Regression
and Correlation", Journal of the American Statistical Association, **80**, 580–598.

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.