[{"title":"( 3 个子文件 52.61MB ) ggplot2从理论到实践","children":[{"title":"ggplot2","children":[{"title":"2016_Book_Ggplot2 Elegant Graphics for Data Analysis.pdf <span style='color:#111;'> 24.65MB </span>","children":null,"spread":false},{"title":"2016_Book_LearnGgplot2UsingShinyApp.pdf <span style='color:#111;'> 33.77MB </span>","children":null,"spread":false},{"title":"TheGrammarofGraphics.pdf <span style='color:#111;'> 13.42MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]