title: MATLAB how to plot contour with special LineWidth for certain value
body: <p>I have the following script:</p>
  
  <pre><code>close all; clear all; clc;
  
  x = linspace(-2*pi,2*pi);
  
  y = linspace(0,4*pi);
  
  [X,Y] = meshgrid(x,y);
  
  Z = sin(X)+cos(Y);
  
  values = -10:0.5:10;
  
  figure
  
  [C,hh] = contour(X, Y, Z, values,'r', 'LineWidth',1); 
  
  clabel(C, hh, values, 'fontsize',7)
  </code></pre>
  
  <p>As you can see in the contour lines, all of the lines are plotted with LineWidth = 1. I would like to plot special line for the value = 0, with LineWidth = 2, how to set it? Thanks a lor for your help.</p>