get_spectra {asdreader} | R Documentation |
Reads either the reflectance, raw DN, or white reference data stored in one or more ASD files.
get_spectra(f, type = "reflectance")
f |
a vector of paths to ASD file(s) |
type |
a character vector, which type of spectra to return. |
a matrix of the spectrum contained in the ASD file(s)
Pierre Roudier
# Get the path to the demo file asd_fn <- asd_file() print(asd_fn) # Example with one file name m1 <- get_spectra(asd_fn) matplot(t(m1), type = 'l') # Example with a vector of file names asd_fns <- rep(asd_fn, times = 4) print(asd_fns) # (in this case, 4 times the same file) m2 <- get_spectra(asd_fns) matplot(t(m2), type = 'l')