The WaferTypes
data frame has 144 rows and 8 columns.
This data frame contains the following columns:
a factor with levels 1
to 4
an ordered factor with levels
900
< 1000
< 1100
a factor with levels A
and B
a numeric vector
a numeric vector
a numeric vector
a numeric vector
an ordered factor giving a unique code to each group, temperature, type and wafer combination.
Littel, R. C., Milliken, G. A., Stroup, W. W., and Wolfinger, R. D. (1996), SAS System for Mixed Models, SAS Institute (Data Set 5.8).
1 |
Questions? Problems? Suggestions? Tweet to @rdrrHQ or email at ian@mutexlabs.com.
All documentation is copyright its authors; we didn't write any of that.