readSLI {RStoolbox}

Read ENVI spectral libraries

Description

read/write support for ENVI spectral libraries

Usage

readSLI(path)

Arguments

path

Path to spectral library file with ending .sli.

Details

ENVI spectral libraries consist of a binary data file (.sli) and a corresponding header (.hdr, or .sli.hdr) file.

Value

The spectral libraries are read into a data.frame. The first column contains the wavelengths and the remaining columns contain the spectra.

See Also

writeSLI

Examples

## Example data
sliFile <- system.file("external/vegSpec.sli", package="RStoolbox")
sliTmpFile <- paste0(tempdir(),"/vegetationSpectra.sli") 

## Read spectral library
sli <- readSLI(sliFile)
head(sli)
plot(sli[,1:2], col = "orange", type = "l")
lines(sli[,c(1,3)], col = "green")
 
## Write to binary spectral library
writeSLI(sli, path = sliTmpFile)