在mtalab的画图中，给出子图的位置，便于设计图形的大小。-　　 a function to define the coodination of your own subplot axes

　　 you d better estimate the input to assure not exceed the figure

　　 this function is similar to the subplot(row,col,i)

　　 i is the ith subplot

　　 [x,y,w,h]=MYaxis(rownum,colnum,wblank,hblank,leftside,rightside,upside,downside,i)

　　　rownum=5

　　　colnum=4

　　　for isub=1:rownum*colnum

　　　if colnum==4

　　　　　　 [x,y,w,h]=MYaxis(rownum,colnum,0.00,0.00,0.1,0.1,0.15,0.25,isub, down )

　　　　 else

　　　　　　 [x,y,w,h]=MYaxis(rownum,colnum,0.00,0.00,0.05,0.05,0.065,0.06,isub, down )

　　　　 end

　　　　 subplot( position ,[x,y,w,h])

　　　　plot([0:4],sin([0:4]), k- )

　　　end