qplotmap: Spectra plotting with ggplot2

In hyperSpec: Work with Hyperspectral Data, i.e. Spectra + Meta Information (Spatial, Time, Concentration, ...)

Description

Spectra plotting with ggplot2

Usage

qplotmap(
  object,
  mapping = aes_string(x = "x", y = "y", fill = "spc"),
  ...,
  func = mean,
  func.args = list(),
  map.tileonly = FALSE
)

Arguments

object	hyperSpec object
mapping	see geom_tile
...	handed to geom_tile
func	function to summarize the wavelengths
func.args	arguments to func
map.tileonly	if TRUE, mapping will be handed to geom_tile instead of ggplot.

Details

These functions are still experimental and may change substantially in future.

Note that qplotmap will currently produce the wrong scales if x or y are discrete.

Value

a ggplot object

Author(s)

Claudia Beleites

See Also

plotmap

ggplotgeom_tile

Examples

qplotmap (chondro)
qplotmap (chondro) + scale_fill_gradientn (colours = alois.palette ())

Example output

Loading required package: lattice
Loading required package: grid
Loading required package: ggplot2
Package hyperSpec, version 0.98-20161118

To get started, try
   vignette ("introduction", package = "hyperSpec")
   package?hyperSpec 
   vignette (package = "hyperSpec")

If you use this package please cite it appropriately.
   citation("hyperSpec")
will give you the correct reference.

The project homepage is http://hyperspec.r-forge.r-project.org

hyperSpec documentation built on Sept. 13, 2021, 5:09 p.m.