对角线上为直方图的散点图矩阵，上三角为相关系数，下三角为散点图

Scatter plot matrix with histogram in diagonal line, correlation coefficients in upper triangular, and scatter plots in the lower triangular

代码示例：

load carsmall 

scatterPlotMatrix([Acceleration,Cylinders,Displacement,Horsepower,Model_Year,Weight,MPG], {'Acceleration','Cylinders','Displacement','Horsepower','ModelYear','Weight','MPG'})

完整源码下载地址：

http://page3.dfpan.com/fs/6l0cfj02c2214249166/ 

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