Sitka {MASS}
Growth Curves for Sitka Spruce Trees in 1988
Description
The Sitka data frame has 395 rows and 4 columns. It gives repeated measurements on the log-size of 79 Sitka spruce trees, 54 of which were grown in ozone-enriched chambers and 25 were controls. The size was measured five times in 1988, at roughly monthly intervals.
Usage
Sitka
References
Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.
See Also
Documentation reproduced from package MASS, version 7.3-26. License: GPL-2 | GPL-3