as.hyperSpec: as.hyperSpec: convenience conversion functions

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

Description

These functions are shortcuts to convert other objects into hypeSpec objects.

Usage

as.hyperSpec(X, ...)

## S4 method for signature 'matrix'
as.hyperSpec(X, wl = guess.wavelength(colnames(X)), ...)

## S4 method for signature 'data.frame'
as.hyperSpec(
  X,
  spc = NULL,
  wl = guess.wavelength(spc),
  labels = attr(X, "labels"),
  ...
)

Arguments

X	the object to convert. A matrix is assumed to contain the spectra matrix, a data.frame is assumed to contain extra data.
...	additional parameters that should be handed over to new ("hyperSpec") (initialize)
wl	wavelength vector. Defaults to guessing from the column names in X
spc	spectra matrix
labels	list with labels

Value

hyperSpec object

Note

Note that the behaviour of as.hyperSpec (X) was changed: it now assumes X to be extra data, and returns a hyperSpec object with 0 wavelengths. To get the old behaviour

See Also

initialize

Examples

tmp <- data.frame(flu [[,, 400 ~ 410]])
(wl <- colnames (tmp))
guess.wavelength (wl)

Example output

Loading required package: lattice
Loading required package: grid
Loading required package: ggplot2
Package hyperSpec, version 0.99-20180627

To get started, try
   vignette ("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


 [1] "X405"   "X405.5" "X406"   "X406.5" "X407"   "X407.5" "X408"   "X408.5"
 [9] "X409"   "X409.5" "X410"  
 [1] 405.0 405.5 406.0 406.5 407.0 407.5 408.0 408.5 409.0 409.5 410.0

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