tst.bci90.mult {CTFS} | R Documentation

## Structure of the CTFS Long Term Forest Data Set Multiple Stem dataset for a single census

### Description

The structure of the CTFS Long Term Forest data set of measurements of multiple stems. In addition to the measurement of a main stem, if a tree has other stems that are greater than 10 mm in dbh, they are also measured for diameter (DBH) only. These measurements are recorded in this file. These measurements are useful for computations of basal area and biomass but are not normally used for computations of indiviual tree dynamics.

### Usage

    data(tst.bci90.mult)

### Format

tag
  a numeric vector, tree identification number
dbh
  a numeric vector, DBH in mm measured in year indicated

### Details

`tst.bci90.mult` and `tst.bci95.mult` are subsets of the complete multi stem data files for BCI census 1990 and 1995, respectively. `tst.bci90.mult` contains 584 records. `tst.bci95.mult` contains 548 records. Only the the multiple stem measures of trees in the `tst.bci90.full` and `tst.bci95.full`, respectively are included. The `tag` number is repeated for as many multiple stems as were measured for the main stem.

### Source

The Center for Tropical Forest Science
http://www.ctfs.si.edu

### Examples

    ## Not run:
    str(tst.bci90.mult)
    ## End(Not run)

[Package CTFS version 1.00 Index]