could anyone tell me how to have equal spacing of selected numbers with respect to axis.

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Prabha Kumaresan 2018-3-28

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https://ww2.mathworks.cn/matlabcentral/answers/391133-could-anyone-tell-me-how-to-have-equal-spacing-of-selected-numbers-with-respect-to-axis

评论： Prabha Kumaresan 2018-3-29

could anyone tell me how to have equal spacing of selected numbers with respect to axis with respect to the command line

set(gca, 'XTick', [0, 1, 2, 23,24]);

I want to have equal spacing between 0,1,2,23 and 24 with respect to x axis.

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Walter Roberson 2018-3-28

The data you are plotting, are the x values for it only 0, 1, 2, 23 and 24, and nothing else?

Is it necessary that the data cursor should show the 24 when it is over information in that range, or is it okay if the data cursor can be wrong?

... And you are still using R2015b, right?

Prabha Kumaresan 2018-3-29

在 MATLAB Online 中打开

s i am using R2015b. data cursor should show only 0,1,2,23,24 numbers in the x axis with equal spacing.

I want to have the graph by using the code

%before plotting
 XData(XData>2&XData<23)=(XData(XData>2&XData<23)-2)/(23-2)+2;
 XData(XData>=23)=XData(XData>=23)-(23-2)+1;
 %plotting code
 plot(XData,YData)
 %renaming of ticks
 set(gca, 'XTick', [0, 1, 2, 3,4]);
 set(gca,'XTickLabel',num2str([0;1;2;23;24]))

If i use the code the number 0,23 and 24 are not getting displayed.

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采纳的回答

Walter Roberson 2018-3-29

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/391133-could-anyone-tell-me-how-to-have-equal-spacing-of-selected-numbers-with-respect-to-axis#answer_312508

在 MATLAB Online 中打开

tx = XData;
mask = tx > 2.5;
tx(mask) = tx(mask) - 20;
plot(tx, YData);
xlim([0 4]);
set(gca, 'XTick', [0, 1, 2, 3,4]);
set(gca,'XTickLabel',num2str([0;1;2;23;24]))
dcm = datacursormode(gcf, 'DisplayStyle', 'datatip', 'UpdateFcn', @myupdatefcn, 'SnapToDataVertex', 'on');

with

function txt = myupdatefcn(src, event)
  loc = event.Position;
  x = loc(1);
  y = loc(2);
  if x > 2.5; x = x + 20; end
  txt = {sprintf('x: %g', x), sprintf('y: %g', y)};

The assignment to dcm and the function are not needed if you do not care about what data cursor mode (tooltips) shows.

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Image Analyst 2018-3-29

编辑：Image Analyst 2018-3-29

Make it easy for us to see by using the green and brown frame icon to insert a picture/screenshot. Or else attach a PNG image instead of a .fig file, which takes multiple additional steps to see.

Prabha Kumaresan 2018-3-29

graph.png

ok.I have attached the png format.

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更多回答（2 个）

Sergey Kasyanov 2018-3-28

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/391133-could-anyone-tell-me-how-to-have-equal-spacing-of-selected-numbers-with-respect-to-axis#answer_312357

在 MATLAB Online 中打开

You can compress data between 2 and 23 ticks roughly by

 %before plotting
 XData(XData>2&XData<23)=(XData(XData>2&XData<23)-2)/(23-2)+2;
 XData(XData>=23)=XData(XData>=23)-(23-2)+1;
 %plotting code
 plot(XData,YData)
 %renaming of ticks
 set(gca, 'XTick', [0, 1, 2, 3,4]);
 set(gca,'XTickLabel',num2str([0;1;2;23;24]))

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Sergey Kasyanov 2018-3-29

在 MATLAB Online 中打开

Also you can use command

xlim([0,24])

to strech axis.

Prabha Kumaresan 2018-3-29

在 MATLAB Online 中打开

graph.png

i am using the code

XData(XData>2&XData<23)=(XData(XData>2&XData<23)-2)/(23-2)+2;
XData(XData>=23)=XData(XData>=23)-(23-2)+1;
plot(XData,YData)
xlim([0,24])
set(gca, 'XTick', [0, 1, 2, 3,4]);
set(gca,'XTickLabel',{'0','1','2','23','24'})

and the graph which i am getting is also attached.

It is seen from the graph all the points 0,1,2,23,24 are present at one side of the graph.The rest of the places are left blank.But I want to have even spreading of the numbers with equal spacing.

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