本文介绍了高斯基函数的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
您能告诉我如何在二维空间中对高斯基函数建模以获得标量输出吗?
Can you please tell me how can I model a Gaussian Basis Function in a 2 Dimensional Space in order to obtain a scalar output?
我知道如何将其与标量输入一起应用，但是我不知道如何将其应用于二维矢量输入.我已经看到了许多让我感到困惑的变化.
I know how to apply this with a scalar input, but I don't understand how should I apply it to a 2 dimensional vector input. I've seen many variations of this that I am confused.
推荐答案
要从多元正态分布中抽样，请使用 MVNRND 函数.示例:
To sample from a multivariate normal distribution, use the MVNRND function from the Statistics Toolbox. Example:
MU = [2 3]; %# mean
COV = [1 1.5; 1.5 3]; %# covariance (can be isotropic/diagonal/full)
p = mvnrnd(MU, COV, 1000); %# sample 1000 2D points
plot(p(:,1), p(:,2), '.') %# plot them
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