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newcon
2011 Oct 27
0
regression in R
...mmary
3. par(mfrow=c(2,2)) + plot(outp) Model Graphs
4. vif(outp) MultiCollinearity
5. gvlma(outp) Heteroscedasticity using GVLMA package
6. outlierTest (outp) for Outliers
7. predicted(outp) Scoring dataset with scores
8. anova(outp)
9. > predict(lm.result,data.frame(conc = newconc), level = 0.9, interval
= “confidence”)
For a Reference Card -Cheat Sheet see
http://cran.r-project.org/doc/contrib/Ricci-refcard-regression.pdf
3) Also read-
http://cran.r-project.org/web/views/Econometrics.html
from the blog post at-
http://www.decisionstats.com/building-a-regression-m...