CODEWITHSUNDEEP
matlabplotmatlab-figurefigure
Ram Shivshankar
Ram Shivshankar

Reputation: 11

How to plot this in matlab?

I have following code 

xr=randi([1 150],1,20)
    z=numel(xr);
    N=10;  %Window length
    gAll=zeros(1,z-N+1);
    for n=0:z-N;
        x=xr(1+n:N+n)
      d=max(x);
        m=numel(x);
        y=zeros(d,1);
        p=zeros(d,d);
        for k=1:m-1
        y(x(k))=y(x(k))+1; 
        p(x(k),x(k+1))=p(x(k),x(k+1))+1;
        end
        p=bsxfun(@rdivide,p,y);
        p(isnan(p)) = 0; 
        j=prod(p(p~=0));
        [~,~,idx] = unique(x);
        q=prod(hist(idx,1:max(idx))/numel(x));
        s=log(j);
        l=log(q);
        g=s+l
    gAll(n+1)=g;
    end
    plot(gAll)

I want a plot such a that for threshold line of gAll =-22, graph above threshold line should be in red color and graph below threshold line should in blue, but graph should in continuous joint with these two different colors, how to do it.

Upvotes: 0

Views: 62

Answers (1)

Steve
Steve

Reputation: 1587

You can mask areas of the graph by setting values to NaN. I would create a high resolution interpolant of the data gAll, then create two coppies, ones with gAll>-22 masked and one with gAll<-22 masked and plot them on the same axes.

You could make gAll_HR a high resolution version of your vector gAll on x_HR with interp1(x, gAll, x_HR), then replace values with NaN using logical indexing:

gAll_low = gAll_HR;
gAll_low(gAll_HR>=-22) = NaN;
gAll_high = gAll_HR;
gAll_high(gAll_HR<-22) = NaN;

plot(x_HR, gAll_low, 'b-', x_HR, gAll_high, 'r-')

Upvotes: 0

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