How to add space between labels values and its represented values in a plot?

The following code, plots the black dots. I'd like to create some separation between the black dots and the red label number of each dot.

for i=1:nr_BBU
   plot(BBU(i,2), BBU(i,1), 'k.', 'MarkerSize',25)
   labels = cellstr(num2str([i]'));
   %text(BBU(i,2), BBU(i,1), labels, 'Color', 'r', 'HorizontalAlignment', 'left', 'Position', '2')
   text(BBU(i,2), BBU(i,1),labels,'HorizontalAlignment','center','VerticalAlignment', 'bottom',...
       'Color', 'r', 'FontSize',12)
   hold on
end

Answer 1

[Adam Danz]

You can add vertical space by increading the value of the 2nd input to text()

text(BBU(i,2), BBU(i,1) * 1.05,labels, . . .)
%              ^^^^^^^^^^^^^^^

or by using labelpoints() from the file exchange. This line below plots the labels North ("N") of the points with a buffer space of 10% (0.1) of the axis range.

labelpoints(BBU(i,2), BBU(i,1), labels, 'N', 0.1, 'Color', 'r', 'FontSize', 12)
%                                            ^^^ buffer

[carlos ruiz de mendoza]

Hi Adam, thanks for your help again!!!

I've tried labelpoints() but only moves the very first label, although it is inside the for loop.

The following modification on the code does the job.

   text(BBU(i,2)+0.001, BBU(i,1),labels,'HorizontalAlignment', ...
       'center','VerticalAlignment', 'bottom',...
       'Color', 'r', 'FontSize',12)

[Adam Danz]

I have a feeling labelpoints() wasn't used correctly but it looks like the text() modification is working for you. I'd be happy to look into what went wrong with the labelpoints method if needed.

[carlos ruiz de mendoza]

I was using the labelpoints() inside the for loop as the code above.

for i=1:nr_BBU
   plot(BBU(i,2), BBU(i,1), 'k.', 'MarkerSize',25)
   % text labels
   labels = cellstr(num2str((i)'));
   labelpoints(BBU(i,2), BBU(i,1), labels, 'N', 0.1, 'Color', 'r', 'FontSize', 12)
   hold on
   
end

[Adam Danz]

I don't see why that wouldn't work, assuming nr_BBU is some value larger than 1. It could be simplified to

for i=1:nr_BBU
   plot(BBU(i,2), BBU(i,1), 'k.', 'MarkerSize',25)
   labelpoints(BBU(i,2), BBU(i,1), i, 'N', 0.1, 'Color', 'r', 'FontSize', 12)
   hold on
end

or better yet,

hold on
for i=1:nr_BBU
   plot(BBU(i,2), BBU(i,1), 'k.', 'MarkerSize',25)
end
labelpoints(BBU(:,2), BBU(:,1), 1:size(BBU,1), 'N', 0.1, 'Color', 'r', 'FontSize', 12)

Nevertheless, if the text() option is working for you then there's no need for a 3rd party function.

[carlos ruiz de mendoza]

Yes nr_BBU are int, ranging from 1 to 18. Putting the function outside the for loop will just label the last iteration. Nevermind, text() modification is working.

Thanks anyway Adam.