It is a free, open source MATLAB toolbox for symbolic data mining (SDM). It uses a biologically inspired machine learning method called multigene genetic programming (MGGP) as the 'engine' that drives the automatic model discovery process. GPTIPS

本程序采用matlab编写。程序加载由用户提供的前处理数据，包括网格数据和载荷数据。采用直接的数值运算和matlab符号运算两种方法（可选择）生成单元刚度矩阵。自动集成结构刚度矩阵，选用直接解法求解线性方程组，解出节点位移。后处理过程中，程序计算了节点应力值，对于共享节点的应力程序采用各个单元计算值的平均，程序同时给出了单元最佳应力点的应力值！(This program is written in matlab. The program loads pre-processing data pro

时间序列的符号动力学信息熵 Hk 因其计算简单快速，对数据量要求小，而被应用于心率变异性 ( heart rate variability，HRV)分析。(The symbolic dynamic information entropy (HK) of time series is applied to heart rate variability (HRV) analysis because of its simple and fast calculation and small data r