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pulipakaa24
2026-02-16 17:12:24 -06:00
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commit ebaa8f416b
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HW_1_PNS_EE379K-385V_Neural_Eng/c3_classification.m Normal file
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close all;clc;
%%
% Inputs:
% --------
% MAVClass1: the features of the VF case (stimulus and rest features)
% MAVClass2: the features of the Pinch case (stimulus and rest features)
% TriggerClass1: labels for VF features (stimulus or rest label)
% TriggerClass2: labels for Pinch features (stimulus or rest label)
% Build the datasets
MAV_class1 = MAVClass1(find(TriggerClass1==1));
MAV_rest1 = MAVClass1(find(TriggerClass1==0));
VAR_class1 = VARClass1(find(TriggerClass1==1));
VAR_rest1 = VARClass1(find(TriggerClass1==0));
MAV_class2 = MAVClass2(find(TriggerClass2==1));
MAV_rest2 = MAVClass2(find(TriggerClass2==0));
VAR_class2 = VARClass2(find(TriggerClass2==1));
VAR_rest2 = VARClass2(find(TriggerClass2==0));
% Concantenate the rest classes
MAV_rest = [MAV_rest1 MAV_rest2];
VAR_rest = [VAR_rest1 VAR_rest2];
%%
% Class1 vs Rest dataset
MAV_Data_Class1vsRest = [MAV_class1 MAV_rest];
MAV_Labels_Class1vsRest = [ones(1,length(MAV_class1)) 2*ones(1,length(MAV_rest))];
VAR_Data_Class1vsRest = [VAR_class1 VAR_rest];
VAR_Labels_Class1vsRest = MAV_Labels_Class1vsRest;
% Class2 vs Rest dataset
MAV_Data_Class2vsRest = [MAV_class2 MAV_rest];
MAV_Labels_Class2vsRest = [ones(1,length(MAV_class2)) 2*ones(1,length(MAV_rest))];
VAR_Data_Class2vsRest = [VAR_class2 VAR_rest];
VAR_Labels_Class2vsRest = MAV_Labels_Class2vsRest;
% Class1 vs Class2 dataset
MAV_Data_Class1vsClass2 = [MAV_class1 MAV_class2];
MAV_Labels_Class1vsClass2 = [ones(1,length(MAV_class1)) 2*ones(1,length(MAV_class2))];
VAR_Data_Class1vsClass2 = [VAR_class1 VAR_class2];
VAR_Labels_Class1vsClass2 = MAV_Labels_Class1vsClass2;
%%
% Both feature datasets
MAVVAR_Data_Class1vsRest = [MAV_Data_Class1vsRest; VAR_Data_Class1vsRest];
MAVVAR_Labels_Class1vsRest = MAV_Labels_Class1vsRest;
MAVVAR_Data_Class2vsRest = [MAV_Data_Class2vsRest; VAR_Data_Class2vsRest];
MAVVAR_Labels_Class2vsRest = MAV_Labels_Class2vsRest;
MAVVAR_Data_Class1vsClass2 = [MAV_Data_Class1vsClass2; VAR_Data_Class1vsClass2];
MAVVAR_Labels_Class1vsClass2 = MAV_Labels_Class1vsClass2;
%%
% Classify all combinations (training set)
k = 10; % for k-fold cross validation
c1 = cvpartition(length(MAV_Labels_Class1vsRest),'KFold',k);
c2 = cvpartition(length(VAR_Labels_Class1vsRest),'KFold',k);
c3 = cvpartition(length(MAVVAR_Labels_Class1vsRest),'KFold',k);
c4 = cvpartition(length(MAV_Labels_Class2vsRest),'KFold',k);
c5 = cvpartition(length(VAR_Labels_Class2vsRest),'KFold',k);
c6 = cvpartition(length(MAVVAR_Labels_Class2vsRest),'KFold',k);
c7 = cvpartition(length(MAV_Labels_Class1vsClass2),'KFold',k);
c8 = cvpartition(length(VAR_Labels_Class1vsClass2),'KFold',k);
c9 = cvpartition(length(MAVVAR_Labels_Class1vsClass2),'KFold',k);
% Repeat the following for i=1:k, and average performance metrics across all iterations
i=1;
% loop over all k-folds and avergae the performance
% for i=1:k
[TstMAVFC1Rest TstMAVErrC1Rest] = classify(MAV_Data_Class1vsRest(c1.test(i))',MAV_Data_Class1vsRest(c1.training(i))',MAV_Labels_Class1vsRest(c1.training(i)));
[TstCM_MAV_C1rest dum1 TstAcc_MAV_C1rest dum2] = confusion(MAV_Labels_Class1vsRest(c1.test(i)), TstMAVFC1Rest);
[TstVARFC1Rest TstVARErrC1Rest] = classify(VAR_Data_Class1vsRest(c2.test(i))',VAR_Data_Class1vsRest(c2.training(i))',VAR_Labels_Class1vsRest(c2.training(i)));
[TstCM_VAR_C1rest dum1 TstAcc_VAR_C1rest dum2] = confusion(VAR_Labels_Class1vsRest(c2.test(i)), TstVARFC1Rest);
[TstMAVVARFC1Rest TstMAVVARErrC1Rest] = classify(MAVVAR_Data_Class1vsRest(:,c3.test(i))',MAVVAR_Data_Class1vsRest(:,c3.training(i))',MAVVAR_Labels_Class1vsRest(c3.training(i)));
[TstCM_MAVVAR_C1rest dum1 TstAcc_MAVVAR_C1rest dum2] = confusion(MAVVAR_Labels_Class1vsRest(c3.test(i)), TstMAVVARFC1Rest);
% Class2 vs Rest
[TstMAVFC2Rest TstMAVErrC2Rest] = classify(MAV_Data_Class2vsRest(c4.test(i))',MAV_Data_Class2vsRest(c4.training(i))',MAV_Labels_Class2vsRest(c4.training(i)));
[TstCM_MAV_C2rest dum1 TstAcc_MAV_C2rest dum2] = confusion(MAV_Labels_Class2vsRest(c4.test(i)), TstMAVFC2Rest);
[TstVARFC2Rest TstVARErrC2Rest] = classify(VAR_Data_Class2vsRest(c5.test(i))',VAR_Data_Class2vsRest(c5.training(i))',VAR_Labels_Class2vsRest(c5.training(i)));
[TstCM_VAR_C2rest dum1 TstAcc_VAR_C2rest dum2] = confusion(VAR_Labels_Class2vsRest(c5.test(i)), TstVARFC2Rest);
[TstMAVVARFC2Rest TstMAVVARErrC2Rest] = classify(MAVVAR_Data_Class2vsRest(:,c6.test(i))',MAVVAR_Data_Class2vsRest(:,c6.training(i))',MAVVAR_Labels_Class2vsRest(c6.training(i)));
[TstCM_MAVVAR_C2rest dum1 TstAcc_MAVVAR_C2rest dum2] = confusion(MAVVAR_Labels_Class2vsRest(c6.test(i)), TstMAVVARFC2Rest);
% Class1 vs Class2
[TstMAVFC1C2 TstMAVErrC1C2] = classify(MAV_Data_Class1vsClass2(c7.test(i))',MAV_Data_Class1vsClass2(c7.training(i))',MAV_Labels_Class1vsClass2(c7.training(i)));
[TstCM_MAV_C1C2 dum1 TstAcc_MAV_C1C2 dum2] = confusion(MAV_Labels_Class1vsClass2(c7.test(i)), TstMAVFC1C2);
[TstVARFC1C2 TstVARErrC1C2] = classify(VAR_Data_Class1vsClass2(c8.test(i))',VAR_Data_Class1vsClass2(c8.training(i))',VAR_Labels_Class1vsClass2(c8.training(i)));
[TstCM_VAR_C1C2 dum1 TstAcc_VAR_C1C2 dum2] = confusion(VAR_Labels_Class1vsClass2(c8.test(i)), TstVARFC1C2);
[TstMAVVARFC1C2 TstMAVVARErrC1C2] = classify(MAVVAR_Data_Class1vsClass2(:,c9.test(i))',MAVVAR_Data_Class1vsClass2(:,c9.training(i))',MAVVAR_Labels_Class1vsClass2(c9.training(i)));
[TstCM_MAVVAR_C1C2 dum1 TstAcc_MAVVAR_C1C2 dum2] = confusion(MAVVAR_Labels_Class1vsClass2(c9.test(i)), TstMAVVARFC1C2);
% end
%%