spectacles (version 0.5-5)

australia: Australia spectra library data set

Description

The australia data set gathers 100 soil spectra, along side with their organic carbon, pH and clay content values. This data set has been collected by CSIRO.The oz dataset is the first 5 samples of australia, and is here to keep examples fast to run.

The data.frame contains the following columns:

• sr_no: a unique identifier for each spectrum

• carbon: soil organic carbon values

• ph: soil pH values

• clay: soil clay values

• X350, X351, ...,X2499, X2500: reflectance in wavelengths 350 to 2500nm

Author

Data kindly contributed by Raphael Viscarra Rossel. To reduce the size of the package, the original dataset has been reduced to 100 spectra using the Kennard-Stone algorithm.

References

Viscarra Rossel, R. and Behrens, T. 2010.

Examples

data(australia)
big.head(australia)
spectra(australia) <- sr_no ~ ... ~ 350:2500

data(oz)
big.head(oz)
spectra(oz) <- sr_no ~ ... ~ 350:2500