could anyone tell me how to have equal spacing of selected numbers with respect to axis.
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    Prabha Kumaresan
 on 28 Mar 2018
  
    
    
    
    
    Commented: Prabha Kumaresan
 on 29 Mar 2018
            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.
2 Comments
  Walter Roberson
      
      
 on 28 Mar 2018
				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?
Accepted Answer
  Walter Roberson
      
      
 on 29 Mar 2018
        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.
3 Comments
  Image Analyst
      
      
 on 29 Mar 2018
				
      Edited: Image Analyst
      
      
 on 29 Mar 2018
  
			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.
More Answers (2)
  Sergey Kasyanov
      
 on 28 Mar 2018
        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]))
  Image Analyst
      
      
 on 29 Mar 2018
        Try this to find File Exchange submissions that allow a "break" in the axes: https://www.mathworks.com/matlabcentral/fileexchange/?utf8=%E2%9C%93&term=broken+axis

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