Quantile Regression Index Score

The QRI_func() function performs quantile regression analysis using age and sex as predictors to calculate the Quantile Regression Index (QRI) score for each individual’s regional brain imaging metrics and then averages across the regional scores to generate an average tissue specific score for each subject. The QRI_plot() is used to plot QRI and generate the normative curves for individual measurements.


Reference manual

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0.2.1 by Si Gao, 11 days ago

Browse source code at https://github.com/cran/QRIpkg

Authors: Peter Kochunov [aut] , Si Gao [aut, cre] , Meghann Ryan [aut]

Documentation:   PDF Manual  

GPL (>= 2) license

Imports ggplot2, quantreg, stats

See at CRAN