how to shift origin or graph without changing the data value.

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PetronasAMG 2018-2-3

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https://ww2.mathworks.cn/matlabcentral/answers/380501-how-to-shift-origin-or-graph-without-changing-the-data-value

回答： Star Strider 2018-2-3

Let's say you have a (x,y) = (1,1) however is there a possible way to show another quadrant of the graph? Every time i try to set the limit, it just changes the interval and does nothing to it. Please help. i looked into x1 =gca?? ax.XAxisLocation? i am not too sure how to utilize these functions nor what they do please help!!

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Answer 1

Star Strider 2018-2-3

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https://ww2.mathworks.cn/matlabcentral/answers/380501-how-to-shift-origin-or-graph-without-changing-the-data-value#answer_303267

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It’s easier to demonstrate if you plot something in all four quadrants.

Example —

x = [-1 1 -1 1];
y = [-1 1 1 -1];
figure(1)
plot(x, y, 'pg', 'MarkerSize',10, 'MarkerFaceColor','g')
Ax = gca;
Ax.XAxisLocation = 'origin';
Ax.YAxisLocation = 'origin';
axis([-1.5  1.5    -1.5  1.5])
grid on