spc.plot.overlay: Plotting multiple 'Spectra' objects inside a 'SpcList'

In PranaGeo/Spectral: Classes and Methods for Working with Spectral Data with Space-Time Attributes

Description

This function overlays spectra plots of several Spectra objects inside a SpcList object. The first element of the input SpcList object is plotted with spc.plot() while remaining elements are overlaid with spc.lines().

Usage

spc.plot.overlay(object,lab_cex,leg_idx, type, lty,lwd, col, ...)

## S4 method for signature 'SpcList'
spc.plot.overlay(
  object,
  lab_cex = 1,
  leg_idx = TRUE,
  type = "l",
  lty = 1,
  lwd = 1,
  col,
  ...
)

Arguments

object	A SpcList data
lab_cex	vector of character expansion sizes, used cyclically
leg_idx	logical If it is of length 1, it determines whether or not to display the legend. If length(leg_idx) is bigger than 1, then its lengths has to equal length(object). Default is TRUE.
type	character string (length 1 vector) or vector of 1-character strings indicating the type of plot for each column of y,
lty	vector of line types. See par().
lwd	numeric. Vector of line widths. See par().
col	A specification for the default plotting color. See par().
...	any further arguments to the plotting function matplot() or spc.plot()

Examples

sp <- spc.example_spectra()
BL = spc.makeSpcList(sp,"CAST")
spc.plot.overlay(BL)
spc.plot.overlay(BL, xlim=c(400,500),ylim=c(0,0.2),lwd=2)
spc.plot.overlay(BL, col=c("red"), leg_idx=FALSE, lty=2)
spc.plot.overlay(BL, col=c("red","blue","green","yellow","cyan","black"))

PranaGeo/Spectral documentation built on Feb. 21, 2020, 12:36 p.m.