etg {xcms} | R Documentation

## Empirically Transformed Gaussian function

### Description

A general function for asymmetric chromatographic peaks.

### Usage

    etg(x, H, t1, tt, k1, kt, lambda1, lambdat, alpha, beta)

### Arguments

`x` | times to evaluate function at
`H` | peak height
`t1` | time of leading edge inflection point
`tt` | time of trailing edge inflection point
`k1` | leading edge parameter
`kt` | trailing edge parameter
`lambda1` | leading edge parameter
`lambdat` | trailing edge parameter
`alpha` | leading edge parameter
`beta` | trailing edge parameter

### Value

The function evaluated at times `x`.

### Author(s)

Colin A. Smith, csmith@scripps.edu

### References

Jianwei Li. Development and Evaluation of Flexible Empirical Peak Functions for Processing Chromatographic Peaks. Anal. Chem., 69 (21), 4452-4462, 1997. http://dx.doi.org/10.1021/ac970481d

[Package xcms version 3.9.1 Index]