Implement the following Matlab function (Algorithm 22.2 in Forsyth and Ponce, part 2):

function classes = CV_plug_in_classify(models,data)
%
%CV_plug_in_classify - classify data using plug in model
%On input:
%     models (structure vector): N models with fields:
%          .num_pts (int): num_points in sample that generates model
%          .samples (mxn array): samples that generate model
%          .mu (nx1 vector): mean for class
%          .sigma (nxn array): covariance for class
%     data (pxn array): data points to be classified
%On output:
%     classes (px1 vector): class labels of data points (0 if unclassified)
%Call:
%     c2 =  CV_plug_in_NN(models1,data2);
%Author:
%     Your name
%     UU
%     Fall 2012
%