8 Jan 19:06 2015

### Analyze Nested and Split-Plot Designs with R

Steven Stoline <sstoline <at> gmail.com>

2015-01-08 18:06:04 GMT

2015-01-08 18:06:04 GMT

Dear All: example 14.1, Montgomery, chapter 14.(Continue reading)*Supplier*is a *fixed factor*,*Batches*is a *random factor* nested within the fixed factor Supplier. How to analyze these data in R in two ways: 1- Nested Design fit <- aov(purity~Supplier/Batch) it did not give me the expected output. 2- as a factorial (suppliers Fixed, Batches Random) fit.out <- aov(Purity~Supplier*Batch, data=have) it did not give me the expected output. Here is the data set: =============== > data Supplier Batch Purity 1 1 1 1 1 -1 1 1 0 1 2 -2 1 2 -3 1 2 -4