模式识别技术-螺丝特征提取以及分类问题-特征分类（问题一）

%特征1为质心，特征2为轮廓面积，特征3为蓝色色度值均值，特征4为红色色度值均值 B1=FVetorBracketsM1; B2=FVectorBracketsA2; B3=FVectorBracketsPAB3; B4=FVectorBracketsPAR4; S1=FVetorScrewsM1; S2=FVectorScrewsA2; S3=FVectorScrewsPAB3; S4=FVectorScrewsPAR4; W1=FVetorWashersM1; W2=FVectorWashersA2; W3=FVectorWashersPAB3; W4=FVectorWashersPAR4; N1=FVetorNutsM1; N2=FVectorNutsA2; N3=FVectorNutsPAB3; N4=FVectorNutsPAR4; %特征1与特征2的相关性 subplot(2,3,1) scatter(B1,B2,50,'r','o','filled'), xlabel('Feature1'), ylabel('Feature2'), axis([0 200 0 20]); hold on scatter(S1,S2,50,'b','o','filled'), hold on scatter(W1,W2,50,'k','o','filled'), hold on scatter(N1,N2,50,'y','o','filled'), hleg1 = legend('Braket`s Feature1 vs Feature2','Screw`s Feature1 vs Feature2','Washer`s Feature1 vs Feature2','Nut`s Feature1 vs Feature2'); %特征1与特征3的相关性 subplot(2,3,2) xlabel('Feature1'), ylabel('Feature3'), scatter(B1,B3,50,'r','o','filled'), % axis([0 300 0 20]); hold on scatter(S1,S3,50,'b','o','filled'), hold on scatter(W1,W3,50,'k','o','filled'), hold on scatter(N1,N3,50,'y','o','filled'), hleg1 = legend('Braket`s Feature1 vs Feature3','Screw`s Feature1 vs Feature3','Washer`s Feature1 vs Feature3','Nut`s Feature1 vs Feature3'); %特征1与特征4的相关性 subplot(2,3,3) xlabel('Feature1'), ylabel('Feature4'), scatter(B1,B4,50,'r','o','filled'), % axis([0 300 0 20]); hold on scatter(S1,S4,50,'b','o','filled'), hold on scatter(W1,W4,50,'k','o','filled'), hold on scatter(N1,N4,50,'y','o','filled'), hleg1 = legend('Braket`s Feature1 vs Feature4','Screw`s Feature1 vs Feature4','Washer`s Feature1 vs Feature4','Nut`s Feature1 vs Feature4'); %特征2与特征3的相关性 subplot(2,3,4) xlabel('Feature2'), ylabel('Feature3'), scatter(B2,B3,50,'r','o','filled'), axis([0 8 100 250]); hold on scatter(S2,S3,50,'b','o','filled'), hold on scatter(W2,W3,50,'k','o','filled'), hold on scatter(N2,N3,50,'y','o','filled'), hleg1 = legend('Braket`s Feature2 vs Feature3','Screw`s Feature2 vs Feature3','Washer`s Feature2 vs Feature3','Nut`s Feature2 vs Feature3'); %特征2与特征4的相关性 subplot(2,3,5) xlabel('Feature2'), ylabel('Feature4'), scatter(B2,B4,50,'r','o','filled'), axis([0 8 100 250]); hold on scatter(S2,S4,50,'b','o','filled'), hold on scatter(W2,W4,50,'k','o','filled'), hold on scatter(N2,N4,50,'y','o','filled'), hleg1 = legend('Braket`s Feature2 vs Feature4','Screw`s Featur2 vs Feature4','Washer`s Feature2 vs Feature4','Nut`s Feature2 vs Feature4'); %特征3与特征4的相关性 subplot(2,3,6) xlabel('Feature3'), ylabel('Feature4'), scatter(B3,B4,50,'r','o','filled'), % axis([0 8 0 300]); hold on scatter(S3,S4,50,'b','o','filled'), hold on scatter(W3,W4,50,'k','o','filled'), hold on scatter(N3,N4,50,'y','o','filled'), hleg1 = legend('Braket`s Feature3 vs Feature4','Screw`s Featur3 vs Feature4','Washer`s Feature3 vs Feature4','Nut`s Feature3 vs Feature4');