pydotplus.graphviz.InvocationException: GraphViz's executables not found
sklearn决策树可视化时报错(graph.write_png()),出错原因是没有安装GraphViz'sexecutables。Graphviz不是一个pythontool,仍然需要安装GraphViz'sexecutables.下载链接http://www.graphviz.org/download/对于一般IDE环境下安装后需要将Graphviz的bin路径添加到环境变量Path中,对于