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DEMOVA (version 1.0)

DEvelopment (of Multi-Linear QSPR/QSAR) MOdels VAlidated using Test Set

Description

Tool for the development of multi-linear QSPR/QSAR models (Quantitative structure-property/activity relationship). Theses models are used in chemistry, biology and pharmacy to find a relationship between the structure of a molecule and its property (such as activity, toxicology but also physical properties). The various functions of this package allows: selection of descriptors based of variances, intercorrelation and user expertise; selection of the best multi-linear regression in terms of correlation and robustness; methods of internal validation (Leave-One-Out, Leave-Many-Out, Y-scrambling) and external using test sets.

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Version

Install

install.packages('DEMOVA')

Monthly Downloads

203

Version

1.0

License

GPL (>= 2)

Maintainer

Vinca Prana

Last Published

March 15th, 2016

Functions in DEMOVA (1.0)

fitting

Performance of selected model
graphe_3Sets

Predictions for the external validation set and graph
prediction

Predictions for the test set and graph
LOO

Leave One Out
select_MLR

Development of the model (multi linear regression)
LMO

Leave Many Out
select_variables

Selection of descriptors
scramb

scrambling
DEMOVA-package

DEvelopment of (multi-linear QSPR/QSAR) MOdels VAlidated using test set.
preselection

Suppression of missing or constant descriptors