diff options
Diffstat (limited to 'demo/massart97ex3.R')
-rw-r--r-- | demo/massart97ex3.R | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/demo/massart97ex3.R b/demo/massart97ex3.R deleted file mode 100644 index 731aba6..0000000 --- a/demo/massart97ex3.R +++ /dev/null @@ -1,15 +0,0 @@ -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) |