in plotting,instead of 'ro' its needed to show numbers

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mohammad
mohammad 2011-9-22
In plotting,instead of 'ro' its needed to show numbers
for example:
plot([0:20],[0:20],'ro')
its needed shows numbers from 1 up 20 instead of 'ro'
and please also refer DOC of this, I can't find it

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Daniel Shub
Daniel Shub 2011-9-22
The "o" in "ro" is not really a letter or a number. You best bet might be to use a loop and the text command ...
figure;
hold on;
axis([0, 20, 0, 20]);
for x = 0:20
h = text(x, x, num2str(x));
set(h, 'HorizontalAlignment', 'Center', 'VerticalAlignment', 'Middle');
end
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Daniel Shub
Daniel Shub 2011-9-22
Sorry, I missed that bit. After your code, you should be able to do:
for ipeak = 1:length(peakinds)
h = text(peakinds(ipeak), peakmags(ipeak), num2str(ipeak));
set(h, 'HorizontalAlignment', 'Center', 'VerticalAlignment', 'Middle');
end
mohammad
mohammad 2011-9-22
figure(1);
plot(1:len0,x0,peakInds,peakInds,'ro'),ylim([0 300]),xlim([2000 8500])
hold on
peakInds=peakInds(2:end);
peakMags=peakMags(2:end);
for ipeak = 1:length(peakInds)
h = text(peakInds(ipeak)+15, peakMags(ipeak), num2str(ipeak),'Color','r');
set(h, 'HorizontalAlignment', 'Center', 'VerticalAlignment', 'Middle');
end
ylim([0 400]),xlim([1000 8500])
hold off

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