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Hello there, I know a lot of answers exist for shading the confidence interval between two curves on a plot. However, I am unable to generate it for this data.

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I tried a few options from the previous answers
like fill, plotUnc, patch but I only get a very fine
black/grey curves at the upper and lower limits.
I have a mean curve, upper limit curve and
lower limit curve data. I want to show the mean
curve and just shade the area in the confidence
interval without lines.
E.g. the below code gives this :
load('data_ques2.mat')
%X2 = [X, fliplr(X)];
inBetween = [YU, fliplr(YL)];
figure()
patch([X fliplr(X)], [YU fliplr(YL)],'g', 'FaceAlpha',0.5);
%fill(X2, inBetween, 'g');
hold on;
plot(X, YM, 'r', 'LineWidth', 2);
But i would like this:
Could you please help me figure out what am I doing wrong here? Thanks in advance!
TWT

Respuesta aceptada

Walter Roberson
Walter Roberson el 17 de Dic. de 2022
Editada: Walter Roberson el 17 de Dic. de 2022
Your last YU value is NaN. patch() and fill() can only draw a face when all of the coordinates for the face are finite.

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