说明：Dynamic_Documents_with_R_and_knitr，_2nd_Edition
说明：Ecological Models and Data in R,.(Princeton.-.2007)
说明：EconometricsInR
说明：efficient_R_programming
说明：Empirical_Research_in_Economics_Growing_up_with_R
说明：Ensemble_Methods_in_Data_Mining2
说明：event history analysis with R
说明：Examples in Parametric Inference with R
说明：Experimental Methods for the Analysis of Optimization Algorithms
说明：Exploratory.Multivariate.Analysis.by.Example.Using.R