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Published byPauline Loraine Gibson Modified over 2 years ago

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lipid Weight Length Age Height Temp Lati Long HCB aHCH gHCH dde ddt pcb28 pcb52 pcb101 pcb118 pcb138 pcb153 pcb180 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Loadings

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Øvre Neådalsvtan Fallbekktjørna Nedre Neadalsvatn Øvre Heimdalsvatnet Stavsvatn Lochnagar Maan Zielony Staw Gasienicowy Vel’ké Hincovo Gossenkoellesee Rotfelsee Oberder Plenderlesee Schwarzsee Lungo Jörisee Paione inferiore Aubé Redo Okoto Bliznaka Cimera Escura 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Scores

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nscores(:,1)=scores(:,1)./norm(scores(:,1),2); nscores(:,2)=scores(:,2)./norm(scores(:,2),2); plot(loads(:,1),loads(:,2),'ob') hold plot(nscores(:,1),nscores(:,2),'+r') vline(0) hline(0) text(nscores(:,1),nscores(:,2),lakenames(:,1:3)); text(loads(:,1),loads(:,2),namevarall); grid on

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nscores(:,1)=scores(:,1)./norm(scores(:,1),2); nscores(:,2)=scores(:,2)./norm(scores(:,2),2); plot(loads(:,1),loads(:,2),'ob') hold plot(nscores(:,1),nscores(:,2),'+r') vline(0) hline(0) text(nscores(:,1),nscores(:,2),lakenames(:,1:3)); text(loads(:,1),loads(:,2),namevarall); grid on

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scores with norm 2

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scores with norm 1

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biplot(loads(:,1:2), 'scores',scores(:,1:2), 'varlabels',namevarall(:,1:3), 'ObsLabels', lakenames);

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y=meanpcb180 xo=meanvar; axo=auto(x); ay=auto(y); [b,ssq,p,q,w,t,u,bin] = pls(axo,ay,5,1); vip_scores = vipr(t(:,1),p(:,1),w(:,1),b(1,:)',1,8,namevarpar);

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b with 1 PLS components y=meanpcb180

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weights with 1 PLS components

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VIP with 1 PLS components

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VIP with 2 PLS components

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[press,cumpress]=crossval(axo,ay,'sim','loo',5); Percent Variance Captured by PLS Model -----X-Block----- -----Y-Block----- LV # This LV Total This LV Total ---- ------- ------- ------- ------- 1 35.98 35.98 61.20 61.20 2 8.84 44.82 15.90 77.10 3 14.86 59.67 1.78 78.88 4 11.85 71.52 0.60 79.48 5 9.77 81.29 0.13 79.61

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