Plots reflectance spectra in different arrangements.
Usage
# S3 method for rspec
plot(
x,
select = NULL,
type = c("overlay", "stack", "heatmap"),
varying = NULL,
n = 100,
labels.stack = NULL,
wl.guide = TRUE,
...
)
Arguments
x
(required) a data frame, possibly an object of class rspec, with a
column with wavelength data, named 'wl', and the remaining column
containing spectra to plot.
select
specification of which spectra to plot. Can be a numeric vector
or factor (e.g., sex=="male")
type
what type of plot should be drawn. Possibilities are:
overlay (default) for plotting multiple spectra in a single panel with
a common y-axis.
stack for plotting multiple spectra in a vertical arrangement.
heatmap for plotting reflectance values by wavelength and a third
variable (varying).
varying
a numeric vector giving values for y-axis in
type = "heatmap".
n
number of bins with which to interpolate colors and varying for
the heatplot.
labels.stack
a vector of labels for the stacked spectra when using
type = "stack". Defaults to the numeric column ID's.
wl.guide
logical determining whether visible light spectrum should be
added to the x-axis.
...
additional arguments passed to plot() (or image() for
"heatmap").