trees


These are a subset of the von Guttenberg data, a set of measurements on
Norway spruce (<em>Picea abies</em> [L.] Karst) in several different
locations and site categories.


datasets

This package provides functions and datasets from the book "Introduction to Scientific Programming and Simulation Using R".

Andrew Robinson

spuRs

Functions and Datasets for "Introduction to Scientific
Programming and Simulation Using R".

trees function

A data frame with 1200 observations on the following 3 variables.
  <dl>
    <dt>ID</dt><dd>A factor identifying the tree by location, site,
      and tree number.</dd> <dt>Age</dt><dd>The age at which the tree was measured.</dd> <dt>Vol</dt><dd>The bole volume of the tree, in cubic dm.</dd> </dl> 

Format

These data were kindly provided by Professor Boris Zeide, University of
Arkanasa, Monticello, AK, USA, and are further documented in Zeide (1993).

trees: von Guttenberg Norway spruce tree measurement data

Description

Usage

Arguments

Format

Source

References

Examples