Plotmap using viridis

Use the viridis colorramp in plotmap as default. The model can contain the special column name .wavelength to specify the wavelength axis.

plotmap_viridis(
  object,
  model = spc ~ x * y,
  func = mean,
  func.args = list(),
  ...
)

Arguments

object	the hyperSpec object
model	formula specifying the columns of object that are to be displayed by levelplot
func	Before plotting, plotmap applies function func with the arguments given in the list func.args to each of the spectra. Thus a single summary value is displayed for each of the spectra. This can be suppressed manually by setting func to NULL. It is automatically suppressed if .wavelength appears in the formula.
func.args	Before plotting, plotmap applies function func with the arguments given in the list func.args to each of the spectra. Thus a single summary value is displayed for each of the spectra. This can be suppressed manually by setting func to NULL. It is automatically suppressed if .wavelength appears in the formula.
...	further arguments are passed down the call chain, and finally to levelplot