MATLAB: Use the same color multiple times in a plotting loop

plot color loop

Hello everyone,
I have a problem with a plotting loop, where I am plotting the spectral data and following the fit. For the reason of clarity I want to have them both in the same color, however matlab switches to the next color in order. Can anyone give me hint how to avoid this?
Ralf

Best Answer

You could use a colormap such as HSV to generate a set of colors. For example:
folder=dir('*.csv');
N = length(folder);
col=hsv(N);
for i=1:N
      file=folder(i,1).name;
      A=csvread(file);
      plot(A(:,1),A(:,2),'color',col(i,:));
      hold all
      f(:,1)=A(:,1);
      f(:,2)=smooth(A(:,2),0.01,'lowess');
      plot(f(:,1),f(:,2),'--','color',col(i,:));
  end
You can read more in Matlab documentations: http://www.mathworks.com/help/techdoc/creating_plots/bqsxy_a-1.html
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