How to get rid of an extra space added by getSnapshotImage

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getSnapshotImage seems to be adding an extra space in the annotation of my figures. In the dummy plot below there is no space between the R and the 2 in superscript in the annotation. But when I open the report there is an added space between the R and the 2 in superscript in the annotation. How do I get rid of that added space ?
import mlreportgen.dom.*
rpt = Report('test', 'pdf');
plot([1,2,3,4], [1,2,3,4])
N = 370;
R = 0.95;
str = ['N = ', num2str(N), ', R^2 = ', sprintf('%.2f', R)];
annotation('textbox', [.15 0.85 0 0], 'string', str, 'FitBoxToText', 'on', 'EdgeColor', 'black');
figure = Figure();
img = Image(getSnapshotImage(figure, rpt));
img.Width = '5.5in';
img.Height = [];
halign = mlreportgen.dom.HAlign('center');
img.Style = [img.Style(:)' {halign}];
add(rpt, img);

Accepted Answer

Srijith Kasaragod
Srijith Kasaragod on 3 Dec 2021
Edited: Srijith Kasaragod on 7 Dec 2021
The following workarounds were found to resolve the issue of extra space you are referring to:
  • Set 'Interpreter' parameter in 'annotation' function call to LATEX:
annotation('textbox', [.15 0.85 0 0], 'String', str, 'FitBoxToText', 'on', 'EdgeColor', 'black', 'Interpreter','latex');
  • Enclose the operands to the superscipt operation with the default TEX interpreter as follows:
str = ['N = ', num2str(N), ', {R}^{2} = ', sprintf('%.2f', R)];
Hope this helps!

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