我在SAS中编写了以下命令来绘制散点图矩阵。如何在图中添加黄土和线性拟合线?
PROC SGSCATTER DATA=HW3;
TITLE "Scatter Plot Matrix";
MATRIX Assets Invest Income Delinq CMembers Branches
/
DIAGONAL=(HISTOGRAM KERNEL NORMAL)
START=TOPLEFT
ELLIPSE=(ALPHA=0.05 TYPE=PREDICTED)
NOLEGEND;
RUN;