Figure 5.

An example of selection of variables in both stages. Number of X- and Z- variables remaining in the model, after each iteration, for the response ‘Melibiose 2% Rate’. X-variables are displayed with red curve and are scaled on vertical left axis, while Z-variables are displayed with blue curve and are scaled on vertical right axis, both stages are shown on x-axis separately.

Mehmood et al. BMC Bioinformatics 2012 13:327   doi:10.1186/1471-2105-13-327
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