taperPlot: Plot Taper Profiles from Dendrometered Trees
In Dendrometry: Decipher Barr & Stroud FP-15 from STX Files

Description Usage Arguments Details Value Author(s) See Also Examples

This routine will generate a lattice conditional plot for one or more trees in an list returned from SplineVolume. The plots can include a splined version of the profile if desired.

taperPlot(ds,
          TreeNos = NA,
          diamKind = c("dib", "dob"),
          diamType = c("diameter", "radius", "xsection"),
          standUp = FALSE,
          ylab = NULL,
          xlab = NULL,
          rugReadings = c('SC','PC'), 
          method = "mono",
          maxTrees = 50,
          fileName = "",
          pointsize.text = 12,
          ...)

`ds`	A list object of class “SplineVolume”, that has been generated by `SplineVolume`.
`TreeNos`	The tree numbers in the collection to be plotted. If `NA` or `NULL`, the entire collection of trees in the object will be plotted. Otherwise, this should be a vector of tree numbers. Any not found in the collection are ignred.
`diamKind`	One can choose to use diameter inside or outside bark, though they may both be the same if no bark thinckness information was taken in the dendrometry.
`diamType`	Once can also choose to use diameter, radius or cross-sectional area in the plots.
`standUp`	`TRUE`: align the tree height vertically; `FALSE` align it horizontally (default).
`ylab`	The y-axis label for plotting, the default depends on `standUp` and `diamType`. Beyond this, you should pass your own labels to make sense of the graph (i.e., for inside or outside bark). See `xyplot` for more information.
`xlab`	The x-axis label for plotting–see `ylab` for more information.
`rugReadings`	A vector of character product codes indicating where in the sense of tree height readings you would like ‘rug’ marks to appear in the graphs. For example, the defaults `c('SC','PC')` are two codes the author used to signify crown base in sawtimber and pulpwood products. Use `NA` or `NULL` for no rug marks.
`method`	The spline method to use in plotting if desired. The method must be one that is compatible with `splinefun`. Note that if no spline is desire, use `NA` or `NULL`.
`maxTrees`	Limits the maximum nmber of tree profiles in any one lattice plot. This is obviously resettable and is there simply as a way to alert you about perhaps plotting hundreds of trees when you did not want to. Override as desired.
`fileName`	The file name for the output file. Please see `hardcopyLattice` for more details. A blank string (default) signals no hard copy.
`pointsize.text`	The point size for the hard copy if desired. Please see `hardcopyLattice` for more details.
`...`	Arguments that are to be passed to `xyplot`.

The default produces one lattice condition panel for each tree. it is quite simple. Please note that you must pass it a legal list of S3 class “SplineVolume” for it to work. There are few error checks other than this.

The function returns the Lattice plot object invisibly.

Jeffrey Gove

xyplot

#
# assume dendro is an object from SplineVolume, then, e.g.,...
#
## Not run: 
plt = taperPlot(dendro, type='l', grid=T, diamType='xsection', standUp=TRUE)

## End(Not run)