Adding legend for iteration and if condition graph

Question

Kwan Chak Yin 2018-5-26

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/402665-adding-legend-for-iteration-and-if-condition-graph

回答： jonas 2018-5-26

Good day, I currently having problem in insert the legend to a graph. Basically this is my coding in plotting the graph. I am using the DisplayName but the legend is missing also. Is it any other ways to put the legend into my plot?

      title('Graph of behaviour against iteration');
      xlabel('iteration t');
      ylabel('behaviour value');
      if max_euc_dist<0.056
          plot(i,dataCopyS5(i,:),'g.','MarkerSize',4,'DisplayName','Normal');hold on
      else
          plot(i,dataCopyS5(i,:),'m+','MarkerSize',4,'DisplayName','Anomaly');hold on
      end

The graph cannot change to scatter plot as the size of dataCopyS5 is 1000x8. Hope that my problem faced can be solved. Thank you.

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Answer 1

jonas 2018-5-26

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/402665-adding-legend-for-iteration-and-if-condition-graph#answer_322028

在 MATLAB Online 中打开

 Try this,
          title('Graph of behaviour against iteration');
          xlabel('iteration t');
          ylabel('behaviour value');
          if max_euc_dist<0.056
              h1=plot(i,dataCopyS5(i,:),'g.','MarkerSize',4);hold on
          else
              h2=plot(i,dataCopyS5(i,:),'m+','MarkerSize',4);hold on
          end
          legend([h1 h2],'Normal','Anomaly')