Is there a way to get shaded error regions on a scatter plot?

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Teshan Rezel
Teshan Rezel 2022년 11월 5일
댓글: Star Strider 2022년 11월 6일
Hi folks,
I have a scatter plot with known errors for each datapoint. Is there a way to create a shaded region around the scatter plot? Below is my graph, the red and cyan regions are the errors and the blue is the data. Is there a way to shade them and make them a continuous line, like the graph below?
I've attached the table below, along with my code.
Thanks
figure;
hold on;
scatter(myData.Anisotropic_1, myData.AnisoMin);
scatter(myData.Anisotropic_1, myData.AnisoMax);
scatter(myData.Anisotropic_1, myData.("MPC aniso"), 'b');
alpha(0.1);
title('Axiovision versus MPC, with reproducibility (r) in shaded region',"FontWeight","bold");
xlabel('Axiovision', "FontWeight","bold");
ylabel('MPC', "FontWeight","bold");
hold off;
  댓글 수: 2
Image Analyst
Image Analyst 2022년 11월 5일
편집: Image Analyst 2022년 11월 5일
If you have any more questions, then attach your data and code to read it in with the paperclip icon after you read this:
Teshan Rezel
Teshan Rezel 2022년 11월 5일
@Image Analyst thanks, I've updated the post with my code and the relevant data!

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Star Strider
Star Strider 2022년 11월 5일
It would help to have the data.
Try something like this —
x = linspace(0, 2*pi, 50);
y = sin(x) + 0.5;
err = rand(size(x))*0.5 + 0.5;
figure
scatter(x, y, 'filled')
hold on
patch([x, flip(x)], [y-0.25 flip(y+err)], 'b', 'FaceAlpha',0.25, 'EdgeColor','r', 'LineStyle','-.', 'MarkerSize',20)
hold off
grid
Experiment to get the desired result.
.
  댓글 수: 4
Walter Roberson
Walter Roberson 2022년 11월 6일
The alternative to sorting is to use boundary() with an alpha value to find the outline of the containing shape.
Star Strider
Star Strider 2022년 11월 6일
I’ve done that in the past, especailly when the outline to be filled would not yield to sorting and remained essentially impossible to define. Here, sorting worked.

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