axes problem in a plot

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joo
joo 2012-11-15
how can i solve the problem of this two images automatically without having to fix the axes range for each plot (i have millions of these plots)?
(problem: axis shoud be for x[0 18]) and for y[-6 6]
(problem: the minimum x and minimum y should be bigger)
thank you so much.

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Matt Fig
Matt Fig 2012-11-15
You can set the axes limits to be a certain percent of the data or fixed values, depending on what you want.
x = -pi:.001:pi;
y = sin(x).*x.^2;
plot(x,y)
axis([-5 5 -6 6]) % Use this to set the limits as needed
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Matt Fig
Matt Fig 2012-11-15
编辑：Matt Fig 2012-11-15
In that case, something like this might be preferable:
x = pi:.001:2*pi;
y = sin(x).*x.^2 + 1;
plot(x,y)
xt = get(gca,'xtick');
dx = xt(2)-xt(1);
yt = get(gca,'ytick');
dy = yt(2) - yt(1);
pause(1)
axis([xt(1) - dx,...
xt(end) + dx,...
yt(1) - dy,...
yt(end) + dy])
Part of the problem is that we could go on forever trying to make your plot look just like you want it to look. I have tried to provide you with some tools to think about, play with, and apply to your particular data.
joo
joo 2012-11-15
your code works with my data for 2D but when i work in 3D it doesn't. i will send you my code and excel file by email. if you don't mind to take a few minutes to see the problem, i would be very grateful.
if you can't, thank you very much as well for ALL your help and kindness!
thank you so much.

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