训练集/测试集产生

load spectra_data.mat

随机产生训练集和测试集

temp = randperm(size(NIR,1))

训练集——50个样本

P_train = NIR(temp(1:50),:)

T_train = octane(temp(1:50),:)

测试集——10个样本

P_test = NIR(temp(51:end),:)

T_test = octane(temp(51:end),:)

N = size(P_test,2)



数据归一化

-　 Training set/test set generation load spectra_data.mat　randomly generated training set and test set temp = randperm (size (NIR, 1))　 training set- 50 samples P_train = NIR (temp (1:50) ,:)'　 T_train = octane (temp (1:50 ),:)'　　test set- 10 samples P_test = NIR (temp (51: end ),:)'　 T_test = octane (temp (51 : end ),:)'　 N = size (P_test, 2)　　Data Normalization