Manipulating the wavelength range of a Spectra object
This methods allows to either select or remove a specific range of
wavelengths from a Spectra object.
## S4 method for signature 'Spectra' cut(x, ..., wl)
x |
an object inheriting from class |
... |
ignored |
wl |
a vector of the wavelengths to either select or remove from
|
The wavelengths are extracted if wl > 0, or removed if wl < 0.
You can't mix negative and positive index in wl.
An object of the same class as x.
Pierre Roudier pierre.roudier@gmail.com
# Loading example data data(australia) spectra(australia) <- sr_no ~ ... ~ 350:2500 # Extracting a specific wavelengths range s <- cut(australia, wl = 450:550) plot(s) s <- cut(australia, wl = c(450:550, 1850:2050)) plot(s) # Removing a specific wavelengths range s <- cut(australia, wl = -1*450:550) plot(s) s <- cut(australia, wl = -1*c(450:550, 1850:2050)) plot(s)
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