Legend Choose Scatter and not plot

Question

Naty S 2012-9-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/49211-legend-choose-scatter-and-not-plot

hey all My problem is that in my code i first use the scatter command and then i use the plot cmd . when i ask for the matlab to create a legend he goes by the shapes and colors of the scatter instead of the plot, since i got couple of scatters with different shapes this is not good for me . i tried setting the plot to h1=plot(..) but it didn't work. only made the same color too all the legend.. How could i solve this? Thanks Naty

the code i use:

 switch j
        case 1
                scatter(y_stable(i,j),y1(i,j),'*','b');
                scatter(y_end(i,j),y_end(i,j),'o','b')
        case 2
                scatter(y_stable(i,j),y1(i,j),'*','k');
                scatter(y_end(i,j),y_end(i,j),'o','k')
        case 3
    scatter(y_stable(i,j),y1(i,j),'*','r');
    scatter(y_end(i,j),y_end(i,j),'o','r')
    end
   end
 end
 end
plot(y0,y1,'b',y0,y1(:,2),'k',y0,y1(:,3),'r',y0,y0,'g');
legend(num2str(alpha(1)),num2str(alpha(2)),num2str(alpha(3)),'refrence','location','best')