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How to assign a reference point in graph?

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LAKSHMANAN ADAIKKAPPAN
编辑： Walter Roberson 2016-4-7
how to assign reference point(0,0) at left top corner like following figure?

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采纳的回答

Walter Roberson
Walter Roberson 2016-4-6
plot(rand(1,30))
set(gca,'YDir', 'reverse')
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Muhammad Usman Saleem
Muhammad Usman Saleem 2016-4-6
have you check output of this code? @LAKSHMANAN ADAIKKAPPAN
Walter Roberson
Walter Roberson 2016-4-7
编辑：Walter Roberson 2016-4-7
Certainly I have checked the output of the code. If you prefer to see the full 0 to 14 and 0 to 16, change the graph to use that, such as
plot(0:16, 14 * rand(1,17))
and you might want to set the axis location as well,
set(gca, 'ydir', 'reverse', 'xaxislocation', 'top')
This could be taken further to get rid of the tick marks but leave the tick labels. The ease of doing that would depend upon the MATLAB version being used.

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更多回答（2 个）

Muhammad Usman Saleem
编辑：Muhammad Usman Saleem 2016-4-6
UPDATE 1:
may try this
plot(1:10)
box off
axes('xlim', [1 10], 'ylim', [1 10], 'color', 'none', 'YAxisLocation', 'right', 'XAxisLocation', 'top')
for reading read here
or may try this
t=0:0.1:10;
y=sin(t);
plot(t,y)
set(gca,'XAxisLocation','top','YAxisLocation','left','ydir','reverse');
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LAKSHMANAN ADAIKKAPPAN
LAKSHMANAN ADAIKKAPPAN 2016-4-6
编辑：LAKSHMANAN ADAIKKAPPAN 2016-4-6
Thank you for your guidance sir. It will work.

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Steven Lord
Steven Lord 2016-4-6
plot(1:10, 1:10);
axis ij
Or if you have the handle of your axes object already, change its YDir property to 'reverse' as Walter showed.

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