Adding extra information into a graph which is text?

So for my appdesigned matlab gui i am plotting the data in the axes. I want to show the rsquare values of 3 models along with plotting the model outcome. However , I am unable to figure out how can I enter the rquare numbers as text into the legend entry box?

Answer 1

[Image Analyst]

Use sprintf()

legendText1 = sprintf('r squared for model 1 = %f', rSquared1);
legendText2 = sprintf('r squared for model 2 = %f', rSquared2);
legendText3 = sprintf('r squared for model 3 = %f', rSquared3);
legend(legendText1, legendText2, legendText3);

[Deandra Dsouza]

I already have a legend for the data curve. I need to additional add this information in the legend box.

[Image Analyst]

textbox = sprintf('%s\n%s\n%s', legendText1, legendText2, legendText3);
text(x, y, textBox);

Use text() and an x,y that places the text where you want it.