PowerPoint Presentationswat.tamu.edu/media/40848/rahman.pdf · PCA Matlab PCA R (ade4) PCA R...

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Transcript of PowerPoint Presentationswat.tamu.edu/media/40848/rahman.pdf · PCA Matlab PCA R (ade4) PCA R...

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PCA Matlab PCA R (ade4) PCA R (prcomp)

[COEFF,SCORE] = princomp(X) [COEFF,SCORE,latent] = princomp(X) [COEFF,SCORE,latent,tsquare] = princomp(X) [...] = princomp(X,'econ')

data2<-read.table("data2.txt",header=T) attach(data2) names(data2) pca_data2<-dudi.pca(data2,scannf=T) pca_data2 pca_data2$li pca_data2$co s.corcircle(pca_data2$co) par(mfrow=c(2,2)) s.corcircle(pca_data2$co) pca_data2$eig

data2<-read.table("data2.txt",header=T) attach(data2) names(data2) prcomp(data2) summary(prcomp(data2, scale = TRUE))

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NSE = 1 −

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sim 2ni=1

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PBIAS = Xi

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