This function returns a ggplot object with an annotated plot of a filter_spct object showing spectral absorbance.
A_plot(spct, w.band, range, label.qty, span, annotations, text.size,
idfactor, na.rm, ylim, ...)a filter_spct object
list of waveband objects
an R object on which range() returns a vector of length 2, with min annd max wavelengths (nm)
character string giving the type of summary quantity to use for labels
a peak is defined as an element in a sequence which is greater than all other elements within a window of width span centered at that element.
a character vector.
numeric size of text in the plot decorations.
character Name of an index column in data holding a
factor with each spectrum in a long-form multispectrum object
corresponding to a distinct spectrum. If idfactor=NULL the name of
the factor is retrieved from metadata or if no metadata found, the
default "spct.idx" is tried. If idfactor=NA no aesthetic is mapped
to the spectra and the user needs to use 'ggplot2' functions to manually
map an aesthetic or use facets for the spectra.
logical.
numeric y axis limits,
currently ignored.
a ggplot object.