Pinus                   Transcriptomes of Pinus roots under a
                        Temperature Gradient
p.clean                 Clean data by eliminating predictors with many
                        missing values
p.opt                   Estimate the optimal number of predictors to
                        construct PLORN model
p.pca                   Visualize predictors using principal coordinate
                        analysis
p.rank                  Visualize R-squared value distribution in
                        predictor-environment interaction
p.sort                  Sort and truncate predictors according to the
                        strength of predictor-environment interaction
plorn                   Construct and apply the PLORN model with your
                        own data
