How can I create a matrix of linestyles for plot to loop through?

So, I have this:

 linedex={'-','--','-.',':'};
 x=[-2;-3;-4];
 for i=1:4
 mmm= [0.0803    0.1912    0.1245
       0.0239    0.3246    0.1581
       0.0164    0.5584    0.2294]; %%%For each loop it gets a different set of values, this is and example one, with the columns being min,max,mean
 hold on
 plt=plot(x,mmm)
 plt.LineStyle(i)=linedex(i);

 end

I've also tried plotting them individually, where its the same linedex and loop replacing mmm with three vectors instead.

x=[-2 -3 -4]
min=[0.0803 0.0239 0.0164]
max=[0.1912 0.3246 0.5584]
mean=[0.1245 0.1581 0.2294]
plot(x,min,x,max,x,mean)

but then how would I call to those specific lines, to have them all be one style, while the next set of min,max, and mean are in a new style/and then colors eventually?

Answer 1

[Stephen23]

You were almost there, you just need to use the right kind of cell array indexing:

   C = {'-','--','-.',':'};
   x = [-2;-3;-4];
   for k = 1:numel(C)
          % Simpler:
          mmm = k+[0.0803,0.1912,0.1245;0.0239,0.3246,0.1581;0.0164,0.5584,0.2294];
          plot(x,mmm,C{k})
          % OR alternatively
          %plt = plot(x,mmm);
          %plt.LineStyle = C{k};
          hold on
   end

Which produces this:

[Connor Sherod]

Exactly what I was trying to do, thank you!

Answer 2

[Sushant Mahajan]

You can use a combination of eval and sprintf. Here I am plotting successive powers of sin(x).

linestyles={'-','--','.-'};
x=linspace(0,90,100);
for i=1:3
eval(sprintf('plot(x,sind(x).^%d,''%s'')',i,cell2mat(linestyles(i))))
hold on
end

Hope this helps!

[Stephen23]

Why on earth do you use eval for this? This is bad advice: eval is totally unnecessary, and pointlessly teaches bad habits to other beginners: using eval for trivial code like this is how beginners force themselves into writing slow, complex, buggy code that is hard to debug. Avoid using this code. Read this to know why:

https://www.mathworks.com/matlabcentral/answers/304528-tutorial-why-variables-should-not-be-named-dynamically-eval

The code is simpler, neater, and more efficient without eval:

C = {'-','--','.-'};
x = 0:90;
for k = 1:numel(C)
    plot(x,sind(x).^k,C{k})
    hold on
end

[Sushant Mahajan]

Thank you for this!