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Create an annotation into a plot

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Tiago Dias
Tiago Dias 2018-11-19
评论： madhan ravi 2018-11-19
Hello,
When i create an annotation into a plot to show me a specific value that I have previously calculated, in the plot it shows me a square, instead of the value I wanted.
This is what I got, keigenvalue is a number 6 for example.
keigenvalue = find(lambda > 1, 1, 'last'); % Gives me the number of principal components that got a eigenvalue superior than 1
y1 = plot(lambda,'*r');
dim = [0.2 0.5 0.3 0.3];
str = ['PC selected =' keigenvalue];
annotation('textbox',dim,'String',str,'FitBoxToText','on');
Thanks for your help.

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madhan ravi
madhan ravi 2018-11-19
编辑：madhan ravi 2018-11-19
str = ['PC selectec =' num2str(keigenvalue)]; %if it doesn't work provide all your values

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