legend is not showing

Question

sivalogan satchithanandamoorthy 2017-6-27

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/346402-legend-is-not-showing

评论： Walter Roberson 2017-6-27

for i=1:x                               %loop
      figure(1)
      hold on
      plot(strain{i},stress{i});
     legendInfo{i}=['Cycle',mat2str(cycle(i))];                              %convert value to string
      plot(Time{i},Value{i});
      legendIn2{i}=['Simulink','DisplayName','numerical model',mat2str(cycle(i))]; 
      hold all
  end
  legend(legendInfo,legendIn2)

for some reason only legendIn2 is being displayed in the plot. how to fix this? Any help would be much appricated.

siva

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Answer 1

Walter Roberson 2017-6-27

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/346402-legend-is-not-showing#answer_272090

在 MATLAB Online 中打开

legend([legendInfo; legendIn2])

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sivalogan satchithanandamoorthy 2017-6-27

there is a small problem. when legendInfo and legendIn2 have multiple graph, then error message appear.the error message is as fallows: Operands to the and && operators must be convertible to logical scalar values.

Error in legend (line 189) all(isgraphics(args{1})) % legend(children,strings,...)

Error in Cycle_stressStrain_test_model (line 67) legend([legendInfo; legendIn2]) %having multiple legend displayed