hyperSpec: orderwl – R documentation

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orderwl

Sorting the Wavelengths of a hyperSpec Object Rearranges the hyperSpec object so that the wavelength vector is in increasing (or decreasing) order.

Description

The wavelength vector is sorted and the columns of the spectra matrix are rearranged accordingly.

Usage

orderwl(x, na.last = TRUE, decreasing = FALSE)

Arguments

`x`	The `hyperSpec` object.
`na.last, decreasing`	Handed to `order`.

Value

A hyperSpec object.

Author(s)

C. Beleites

Examples

## Example 1: different drawing order in plotspc
spc <- new ("hyperSpec", spc = matrix (rnorm (5) + 1:5, ncol = 5))
spc <- cbind (spc, spc+.5)

plot (spc, "spc")
text (wl (spc), spc [[]], as.character (1:10))
spc <- orderwl (spc)
plot (spc, "spc")
text (wl (spc), spc [[]], as.character (1:10))

## Example 2
spc <- new ("hyperSpec", spc = matrix (rnorm (5)*2 + 1:5, ncol = 5))
spc <- cbind (spc, spc)

plot (seq_len(nwl(spc)), spc[[]], type = "b")
spc[[]]

spc <- orderwl (spc)
lines (seq_len(nwl(spc)), spc[[]], type = "l", col = "red")
spc[[]]

hyperSpec

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

v0.100.0

GPL (>= 3)

Authors

Claudia Beleites [aut, cre, dtc] (<https://orcid.org/0000-0003-1626-154X>), Valter Sergo [aut], Alois Bonifacio [ctb, dtc], Marcel Dahms [ctb], Björn Egert [ctb], Simon Fuller [ctb], Vilmantas Gegzna [ctb], Rustam Guliev [ctb], Bryan A. Hanson [ctb], Michael Hermes [ctb], Martin Kammer [dtc], Roman Kiselev [ctb], Sebastian Mellor [ctb]

Initial release

2021-09-13