Colorbar is opposite of scatterplot

4 次查看（过去 30 天）
Jose
Jose 2023-5-6
评论： Jose 2023-5-7
So I copied all of the steps found on the following documentation page: https://www.mathworks.com/help/stats/gmdistribution.mahal.html
but for some reason my graph is showing the color yellow at the top but the scatter plot shows it closest the origin. From the Documentation it looks like the graph should match the colorbar values and vice-versa. anyone know what Iam doing wrong? I have tried multiple different solutions such as colormap(flipud(hot)) with no success
r1 = mvnrnd(mu1,Cov1,1000);
r2 = mvnrnd(mu2,Cov2,1000);
X = [r1; r2];
gm = fitgmdist(X,2);
d2 = mahal(gm,X);
scatter(X(:,1),X(:,2),10,d2(:,1),'.')
c = colorbar;
ylabel(c,'Graph')

请先登录，再回答此问题。

采纳的回答

the cyclist
the cyclist 2023-5-6
It is more difficult to debug your result, when you have not given us the full code that generates your figure.
But, I see no problem here. Note that your code (like the example in the documentation), is displaying the Mahalanobis distance of each point from Cluster 1.
In your figure, Cluster 1 must be the cluster that is in the upper-right part of the figure (where all the points are the purplish color). The points you have put the red box around are the ones with the greatest distance from the center of that cluster.
I see no inconsistency in your results.
  1 个评论
Jose
Jose 2023-5-7
thanks for this, for some reason I thought furthest distance from the component would be in the upper right corner opposite of the origin.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Orange 的更多信息

标签

产品


版本

R2022b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by