function?[MAE?RMSE?MAPE?DISTAT]=?ELM（TrainingData_File?TestingData_File?NumberofHiddenNeurons?ActivationFunction）
%author：xiaobei
%blog:http://blog.csdn.net/lijjianqing
%Email：1600185439@qq.com

%回歸預測，模型保存在elm_model.mat中；訓練集預測結果保存在elm_output_train.mat中；測試集預測結果保存在
%elm_output_test.mat中；測試集的統計量保存在elm_result.mat中
%?Input:
%?TrainingData_File?????-?Filename?of?training?data?set
%?TestingData_File??????-?Filename?of?testing?data?set
%?NumberofHiddenNeurons?-?Number?of?hidden?neurons?assigned?to?the?ELM
%?ActivationFunction????-?Type?of?activation?function:
%???????????????????????????‘sig‘?for?Sigmoidal?function
%???????????????????????????‘sin‘?for?Sine?function
%???????????????????????????‘hardlim‘?for?Hardlim?function
%???????????????????????????‘tribas‘?for?Triangular?basis?function
%???????????????????????????‘radbas‘?for?Radial?basis?function?（for?additive?type?of?SLFNs?instead?of?RBF?type?of?SLFNs）
%
%?Output:（輸出測試集的統計量）
%?MAE
%?RMSE
%?MAPE
%?DISTAT
%?TrainingTime??????????-?Time?（seconds）?spent?on?training?ELM
%?TestingTime???????????-?Time?（seconds）?spent?on?predicting?ALL?testing
%訓練集的統計量
%?MAE_TRA
%?RMSE_TRA
%?MAPE_TRA
%?DISTAT_TRA


%%%參照文獻及資源說明
%reference:
?%%%%????Authors:????MR?QIN-YU?ZHU?AND?DR?GUANG-BIN?HUANG
????%%%%????NANYANG?TECHNOLOGICAL?UNIVERSITY?SINGAPORE
????%%%%????EMAIL:??????EGBHUANG@NTU.EDU.SG;?GBHUANG@IEEE.ORG
????%%%%????WEBSITE:????http://www.ntu.edu.sg/eee/icis/cv/egbhuang.htm
????%%%%????DATE:???????APRIL?2004
%%%%
%%%%%%%%%%%?Load?training?dataset
train_data=load（TrainingData_File）;
T=train_data（:1）‘;
P=train_data（:2:size（train_data2））‘;
clear?train_data;???????????????????????????????????%???Release?raw?training?data?array
%%%%%%%%%%%?Load?testing?dataset
test_data=load（TestingData_File）;
TV.T=test_data（:1）‘;
TV.P=test_data（:2:size（test_data2））‘;
clear?test_data;????????????????????????????????????%???Release?raw?testing?data?array

NumberofTrainingData=size（P2）;
NumberofTestingData=size（TV.P2）;
NumberofInputNeurons=size（P1）;

%%%%%%%%%%%?Calculate?weights?&?biases
start_time_train=cputime;

%%%%%%%%%%%?Random?generate?input?weights?InputWeight?（w_i）?and?biases?BiasofHiddenNeurons?（b_i）?of?hidden?neurons
InputWeight=rand（NumberofHiddenNeuronsNumberofInputNeurons）*2-1;
BiasofHiddenNeurons=rand（NumberofHiddenNeurons1）;
tempH=InputWeight*P;
clear?P;????????????????????????????????????????????%???Release?input?of?training?data?
ind=ones（1NumberofTrainingData）;
BiasMatrix=BiasofHiddenNeurons（:ind）;??????????????%???Extend?the?bias?matrix?BiasofHiddenNeurons?to?match?the?demention?of?H
tempH=tempH+BiasMatrix;

%%%%%%%%%%%?Calculate?hidden?neuron?output?matrix?H
switch?lower（ActivationFunction）
????case?{‘sig‘‘sigmoid‘}
????????%%%%%%%%?Sigmoid?
????????H?=?1?./?（1?+?exp（-tempH））;
????case?{‘sin‘‘sine‘}
????????%%%%%%%%?Sine
????????H?=?sin（tempH）;????
????case?{‘hardlim‘}
????????%%%%%%%%?Hard?Limit
????????H?=?double（hardl

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-12-16?23:23??ELM\
?????文件????????6554??2014-12-16?23:22??ELM\ELM.m
?????文件?????????191??2014-12-16?23:23??ELM\guidence.m
?????文件?????????323??2014-12-16?22:24??ELM\testdata
?????文件????????2649??2014-12-16?22:24??ELM\traindata