Changing the opacity of a fit line

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Sophie Blankenheim 2021-4-1

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https://ww2.mathworks.cn/matlabcentral/answers/790119-changing-the-opacity-of-a-fit-line

评论： Mathieu NOE 2021-4-2

I'm trying to get my fit line to be the same opacity as the scatter points. How can I convert the line color from the way that I have it to the 4D color i.e [0 0 0 0.5] ?

 scatter(TDSad.Agemos,TDSad.(measureToAnalyze),'k','v','MarkerEdgeAlpha',0.5)%
    scatter(DSSad.Agemos,DSSad.(measureToAnalyze),'m','^','filled')%
   [sortedTD, sortItd] = sort(TDSad.Agemos);
    p1 = plot(sortedTD,TDall_yfit(sortItd),'LineStyle','--','Color','k','LineWidth', 2,);
    p2 = plot(DSSad.Agemos,DSall_yfit,'LineStyle','-','Color','m','LineWidth',2);