Customized Legend in Matlab

Question

BigBang 2015-3-5

0
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https://ww2.mathworks.cn/matlabcentral/answers/181633-customized-legend-in-matlab

回答： BigBang 2015-3-5

采纳的回答： BigBang

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Here I have a for loop to plot the content of my matrix.

Based on 'type' value I determine the plot object (ks,bO,rX)

for k = 1:length(data1)
    if(type(k)==1)
       h=plot(data1(k,1),data1(k,2),'ks');set(h,'linewidth',2);hold on;
    elseif(type(k) ==0)
            h=plot(data1(k,1),data1(k,2),'bO');set(h,'linewidth',2); hold on;
    else
            h=plot(data1(k,1),data1(k,2),'rX');set(h,'linewidth',2); hold on;
    end
end

I am little bit confused to find a way to put legend in my final figure, which shows my own explanation regarding each object(ks,bO,rX). type is just an array of integer which holds (-1,0,1). For example when it is 0 , capital 'O' will be plot. So In Legend I want to mention for example O represent negative values. But I couldn't find anyway to wring a string (as the description) beside O or X or the Square in legend.