alr4 (version 1.0.5)

lathe1: Lathe data

Description

These data are the results of an experiment to study the performance of cutting-tool material in cutting steel on a lathe. The two factors are revolution speed and feed rate. The response is tool life in minutes.

Arguments

Format

This data frame contains the following columns:
Feed
Coded feed rate, coded as (actual feed rate -13)/6. Feed is in thousandths of an inch per revolution.
Speed
Coded speed, coded as (actual speed -900)/300. Speed is in feet per minute.
Life
Life of tool until failure, minutes

Source

M. R. Delozier

References

Weisberg, S. (2014). Applied Linear Regression, 4th edition. Hoboken NJ: Wiley.

Examples

Run this code
head(lathe1)

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