hsdar: Clman-methods – R documentation

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Clman-methods

Methods to create, manipulate and query objects of class 'Clman'.

Description

Methods to create, manipulate and query objects of class 'Clman'. The class 'Clman' is used to store manually defined continuum lines and the associated spectra.

Usage

## Creation of objects
## S4 method for signature 'Clman'
initialize(.Object, ...)  
  
## S4 method for signature 'Clman'
spectra(object, ...)

## S4 replacement method for signature 'Clman,data.frame'
spectra(object) <- value

## S4 replacement method for signature 'Clman,matrix'
spectra(object) <- value

## S4 replacement method for signature 'Clman,numeric'
spectra(object) <- value

## S4 method for signature 'Clman'
plot(x, ispec, subset = NULL, numeratepoints = TRUE, 
    hull.style = NULL, points.style = list(), ...)

Arguments

`.Object,object`	Matrix, numeric or array in cases of creation of 'Clman' objects otherwise object of class 'Clman'.
`value`	Object of class numeric, matrix or array which is used for replacement of the values in x.
`...`	Arguments passed to `speclib` or `plot.default`.
`x`	Object of class `clman`.
`ispec`	Name or index of spectrum to be plotted.
`subset`	Lower and upper spectral limits used for plot.
`numeratepoints`	Flag if points should be numerated in plot.
`hull.style`	List of arguments passed to `lines` to construct the continuum line.
`points.style`	List of arguments passed to `points` to construct the continuum points. May be `NULL` to suppress plotting of fix points.

Value

For spectra<-, the updated object. Otherwise a matrix returning the spectra in the Clman object.

Note

The functions to create objects of class Clman are mainly internally needed by transformSpeclib.

Author(s)

Lukas Lehnert

Examples

## Model spectra using PROSAIL
parameter <- data.frame(N = rep.int(c(1, 1.5),2), LAI = c(1,1,3,3))
spec <- PROSAIL(parameterList=parameter)

## Transform spectra
spec_clman <- transformSpeclib(spec, method = "sh", out = "raw")

## Return first spectrum
spectra(spec_clman)[1,]

## Plot clman
plot(spec_clman, ispec = 1, subset = c(400, 1000))

hsdar

Manage, Analyse and Simulate Hyperspectral Data

v1.0.3

GPL

Authors

Lukas W. Lehnert [cre, aut] (<https://orcid.org/0000-0002-5229-2282>), Hanna Meyer [ctb], Joerg Bendix [ctb]

Initial release

2020-08-04