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how to select origin for plotting graph

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Tejas Mahajan
Tejas Mahajan 2020-10-9
评论： Ameer Hamza 2020-10-9
i have y=[1,5,8,3,9] and x has to be the origin from where the graph will have origin, suppose user want origin a y[8] so point(0,8) will be the origin and the other points will be according to that.Please help me with this.

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Ameer Hamza
Ameer Hamza 2020-10-9
编辑：Ameer Hamza 2020-10-9
Suppose in this case you want origin at y(3)
y= [1,5,8,3,9];
n = 3;
x = -(n-1):numel(y)-n; % or x = (0:numel(y)-1)-n+1;
plot(x, y);
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Ameer Hamza
Ameer Hamza 2020-10-9
By default, the plot starts y(1) at x=1. If you want to start y(3) at x=0, then you need to move y(1) to -2. This is happening in the above code.

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