回归预测|基于哈里斯鹰优化最小二乘支持向量机的数据回归预测Matlab程序HHO-LSSVM 多特征输入单输出含基础程序-三、核心代码

%%  导入数据
res = xlsread('数据集.xlsx');

%%  数据分析
num_size = 0.8;                              % 训练集占数据集比例
outdim = 1;                                  % 最后一列为输出
num_samples = size(res, 1);                  % 样本个数
num_train_s = round(num_size * num_samples); % 训练集样本个数
f_ = size(res, 2) - outdim;                  % 输入特征维度

%%  划分训练集和测试集
P_train = res(1: num_train_s, 1: f_)';
T_train = res(1: num_train_s, f_ + 1: end)';
M = size(P_train, 2);

P_test = res(num_train_s + 1: end, 1: f_)';
T_test = res(num_train_s + 1: end, f_ + 1: end)';
N = size(P_test, 2);

%%  数据归一化
[P_train, ps_input] = mapminmax(P_train, 0, 1);
P_test = mapminmax('apply', P_test, ps_input);

[t_train, ps_output] = mapminmax(T_train, 0, 1);
t_test = mapminmax('apply', T_test, ps_output);

%%  数据平铺
P_train =  double(reshape(P_train, f_, 1, 1, M));
P_test  =  double(reshape(P_test , f_, 1, 1, N));