The binary data from Cox and Snell (1989, pp. 10-11).

The dataset consits of the number of ingots not ready for rolling and the number of ingots ready for rolling for a number of combinations of heating time and soaking time.

Usage

ingots

Format

An object of class tbl_df (inherits from tbl, data.frame) with 25 rows and 4 columns.

Details

Heat: The heating time
Soak: The soaking time
NotReady: Response indicator, with a value 1 for units not ready for rolling (event) and a value of 0 for units ready for rolling (nonevent)
Freq: The frequency of occurrence of each combination of Heat, Soak, and NotReady