How to divide a graph into 8 equal region and assign a number for each region?

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joynob ahmed 2020-7-1

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https://ww2.mathworks.cn/matlabcentral/answers/557617-how-to-divide-a-graph-into-8-equal-region-and-assign-a-number-for-each-region

评论： joynob ahmed 2020-7-3

vvv.m

I am working with border irregularity. For this I have got upto this curve:

Now I want to divide it into 8 regions like this:

and for every region I want to assign value=1 so that if the region got minimum 1 star then the value will be 1 and if not then 0. then I wiil add the the number so the range of the result will be 0-8. How can I do this.My code and main image is given below:

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darova 2020-7-2

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https://ww2.mathworks.cn/matlabcentral/answers/557617-how-to-divide-a-graph-into-8-equal-region-and-assign-a-number-for-each-region#answer_459964

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Here is the start

x = 0:.2:20;
x = [x'; nan];      % add 'NaN' to break the line
y = sin(x);
c = round( (1:length(x))/length(x)*5+1 );
cla
patch(x,y,c,'facecolor','none',...
    'edgecolor','flat',...
    'marker','.')
axis equal