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（1）C4.5算法的特点为：输入变量（自变量）：为分类型变量或连续型变量。输出变量（目标变量）：为分类型变量。连续变量处理：N等分离散化。树分枝类型：多分枝。分裂指标：信息增益比率gain ratio（分裂后的目标变量取值变异较小，纯度高）前剪枝：叶节点数是否小于某一阈值。后剪枝：使用置信度法和减少... 阅读全文
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Joanna Zhao’s and Jenny Bryan’sR graph catalogis meant to be a complement to the physical book,Creating More Effective Graphs, but it’s a really nice ... 阅读全文
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In preparation for a R Workgroup meeting, I started thinking about what would be my "Top 5 R Functions". I ruled out the functions for basic mechanics... 阅读全文
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This slidify-based deck introduces the shinypackage from R-Studio and walks one through the development of an interactive application that presents us... 阅读全文