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-rw-r--r--demo/massart97ex3.R15
1 files changed, 0 insertions, 15 deletions
diff --git a/demo/massart97ex3.R b/demo/massart97ex3.R
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--- a/demo/massart97ex3.R
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-library(chemCal)
-data(massart97ex3)
-attach(massart97ex3)
-yx <- split(y,factor(x))
-ybar <- sapply(yx,mean)
-s <- round(sapply(yx,sd),digits=2)
-w <- round(1/(si^2),digits=3)
-data.frame(x=levels(factor(x)),ybar,s,w)
-
-weights <- w[factor(x)]
-m <- lm(y ~ x,w=weights)
-inverse.predict(m,15,ws=1.67)
-inverse.predict(m,90,ws=0.145)
-
-calplot(m)

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