R: NIR data

NIR {chemometrics} | R Documentation

## NIR data

### Description

For 166 alcoholic fermentation mashes of different feedstock (rye, wheat and corn) we have 235 variables (X) containing the first derivatives of near infrared spectroscopy (NIR) absorbance values at 1115-2285 nm, and two variables (Y) containing the concentration of glucose and ethanol (in g/L).

### Usage

    data(NIR)

### Format

A data frame with 166 objects and 2 list elements:

`xNIR`

  data frame with 166 rows and 235 columns

`yGlcEtOH`

  data frame with 166 rows and 2 columns

### Details

The data can be used for linear and non-linear models.

### Source

B. Liebmann, A. Friedl, and K. Varmuza. Determination of glucose and ethanol in bioethanol production by near infrared spectroscopy and chemometrics. Anal. Chim. Acta, 642:171-178, 2009.

### References

B. Liebmann, A. Friedl, and K. Varmuza. Determination of glucose and ethanol in bioethanol production by near infrared spectroscopy and chemometrics. Anal. Chim. Acta, 642:171-178, 2009.

### Examples

    data(NIR)
    str(NIR)

[Package chemometrics version 1.4.2 Index]