Description Usage Arguments Details Value References See Also

Validation the model through test set by the external squared-Q

1 | ```
Qsquared.ext(y.pre, y, ytr)
``` |

`y.pre` |
calculated response values of test set |

`y` |
observed values of test set, a 1*(n-m) dataframe (n-m is the sample number of test set) |

`ytr` |
the response variable of the training set, a 1*m dataframe |

The value of squared Q should be greater than or eaqual than 0.5.

`Qsquared.ext` |
It is a numeric value and it should be greater than 0.5 in a successful QSAR model. |

A. Tropsha, P. Gramatica, V. K. Gombar, *QSAR Comb. Sci.* **2003**, *22*, 69-77

MLRMPA documentation built on May 29, 2017, 10:17 a.m.

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.