orderwl: Sorting the Wavelengths of a hyperSpec Object Rearranges the...

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

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

See Also

order

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