一种基于分类属性的相依系数的离散化方法.对于一部分为分类属性和连续属性的离散化问题解决较好.-algorithm based on Class-Attribute Contingency Coefficient,Is a study of the discretization, algorithms and procedures

描述了关于线段树的一些原理及基本操作，后面引用两个例题详细介绍了离散化，扫描线，以及二维线段树-Describes the segment tree some of the principles and basic operation, followed by reference to the two examples described in detail the discretization, scan lines, as well as two-dimensional segment tr

专家控制 求二阶传递函数的阶跃响应 G(s)=133/(s^2+25s),取采样时间为1ms进行离散化。设计专家PID控制器，并进行Matlab仿真。(Expert control Find the step response of the second-order transfer function G(s)=133/(s^2+25s), and take the sampling time as 1ms for discretization. Design expert PID contro