使用matlab预处理数据，读取，转置，切分，存储，导入

%先直接使用excel切分数据，然后读入matlab进行处理%从excel中读取数据[FEATURES,TXT,RAW] = xlsread('features');[LABElS,TXT,RAW] = xlsread('labels');%转置矩阵,得到的矩阵每一列为一条数据，每一行为某个特征FEATURES_T = FEATURES';LABElS_T = LABElS';[f_row,f_col] = size(FEATURES_T);[l_row,l_col] = size(LABElS_T);split_point = floor(f_col*0.7);%切分数据集，按7:3切分P = [FEATURES_T(:,1:split_point)];T = [LABElS_T(:,1:split_point)];P_test = [FEATURES_T(:,split_point+1:end)];T_test = [LABElS_T(:,split_point+1:end)];size(P);size(T);size(P_test);size(T_test);%存入mat中save weibo_data P T P_test T_test;%读取mat%load weibo_data