Figure 4
From: Analogue-based approaches in anti-cancer compound modelling: the relevance of QSAR models
![Figure 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F2191-2858-1-3/MediaObjects/13588_2011_Article_3_Fig4_HTML.jpg)
Classification of various descriptors involved in QSAR model. Numbers in parenthesis indicates the number of descriptors from one group while numbers outside parenthesis indicates the occurrence of a particular type of descriptor in the models (see Additional file 1 Table S11 for the details of all the descriptors).