Using a for loop for legend plots

Question

Bob 2014-12-15

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/166732-using-a-for-loop-for-legend-plots

回答： Amit 2014-12-15

I was able to make each point a different color in my plot. I want to do the same thing for the legend. How can I put the legend for each data point using a for loop?

Here is my code.

Z=[3 1 7];

for i=1:length(Z)

A(i)=Z(i)+2;

B(i)=Z(i)-7;

C(i)=Z(i)+4;

col=['g' 'b' 'r'];

for j:length(col)

x=[1 2 3];

y(:,i)=[A(i) B(i),C(i)];

subplot(3,1,i)

plot(x,y(:,i),'color',col(i))

end end

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Answer 1

Amit 2014-12-15

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/166732-using-a-for-loop-for-legend-plots#answer_162441

在 MATLAB Online 中打开

Z=[3 1 7];
for i=1:length(Z)
      A(i)=Z(i)+2;
      B(i)=Z(i)-7;
      C(i)=Z(i)+4;
      col=['g' 'b' 'r'];
      legendtext = ['a' 'b' 'c'];  %%Add your legend text
      for j=1:length(col)
          x=[1 2 3];
          y(:,i)=[A(i) B(i),C(i)];
          subplot(3,1,i);
          plot(x,y(:,i),'color',col(i))
          legend(legendtext(i));
      end
  end