Retrieve dimensions of Spectra* objects
Retrieves the wavelengths units and the spectral resolution from
Spectra* objects.
## S3 method for class 'Spectra' length(x) ## S4 method for signature 'Spectra' nrow(x) ## S4 method for signature 'Spectra' ncol(x) ## S3 method for class 'Spectra' dim(x)
x |
For |
* Methods for Spectra objects
nrow returns the number of individuals in the collection
length returns the number of wavelengths in the collection
ncol returns NULL dim returns a vector containing (1) the
number of individuals and (2) in the number of wavelengths in the collection
* Methods for Spectra objects
nrow returns the number of individuals in the collection
length returns the number of wavelengths in the collection
ncol returns the number of attributes in the collection dim
returns a vector containing (1) the number of individuals, (2) in the number
of wavelengths, and (3) the number of attributes in the collection
nrow, ncol, nwl, and length, return an
integer, dim returns a vector of length 2 or 3 (see Details section).
Pierre Roudier pierre.roudier@gmail.com
# Loading example data data(australia) spectra(australia) <- sr_no ~ ... ~ 350:2500 nrow(australia) ncol(australia) length(australia) dim(australia)
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