说明：SentiWordNet_ A publicly available lexical resource for opinion mining
说明：SentiWordNet_ A publicly available lexical resource for opinion mining
说明：A Handbook of Statistical Analyses Using R
说明：A Modern Approach To Regression With R(4Ed)
说明：A Primer in Biological Data Analysis and Visualization Using R-Columbia Universi
说明：a user's guide to network analysis in R
说明：Categorical_Data_Analysis_（2Ed）_S_＆_R_codes_［Thompson，L.A._2007］
说明：Complex Surveys A Guide to Analysis Using R
说明：R in a Nutshell
说明：Rattle_ A Data Mining GUI for R