Description Usage Arguments Details Value Examples
View source: R/shrubspeciesfuel.R
Calculates loading (kg/m2) of total or fine fuels corresponding to shrub species data
1 2 3 4 |
x |
data frame with columns 'plot', 'species', 'H' (mean height in cm), 'C' (cover in percent). Column 'group' may be used to specify a functional group to be used when the species has not a specific allometry (see details). |
type |
either 'total' (total fuel) or 'fine' (fine fuels) |
allometric |
wether to use allometric equations or bulk density estimates |
excludeSSP |
excludes subspecies information for species matching |
equationNames |
a flag to indicate that the name of species or group allometry or bulk density used is desired |
var |
a flag to indicate that variance of estimates is desired |
agg |
aggregation of results. Either 'none' or 'plot' |
customParams |
custom allometry parameter table (for species not in default params) |
outside |
Treament of values outside calibration range: either 'warning' (to prompt a warning) or 'missing' (prompt a warning and return NA) |
na.rm |
whether to exclude missing values when aggregating loading |
The function determines the allometry to be applied using the following rules, sequentially:
If the species name is included in the list of species with parameter values, it takes the parameters from that species.
If the species name is a synonym for a species included the list of species with parameter values, it takes the parameters from that species (and gives a warning).
If the user has specified a column 'group' and the value is included in the list of valid groups, it takes the parameters from that group.
If the species is listed within the checklist in 'species_groups', it takes the parameters from the group specified in that file.
Otherwise, it gives a warning and no allometry is applied.
a vector with species loading values (kg/m2)
1 2 3 4 5 6 7 |
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.