Wafer Modeling of Analog MOS Circuits
 Description
The Wafer data frame has 400 rows and 4 columns. 
Format
This data frame contains the following columns:
- Wafer
-  a factor with levels 12345678910
- Site
-  a factor with levels 12345678
- voltage
-  a numeric vector 
- current
-  a numeric vector 
Source
Pinheiro, J. C. and Bates, D. M. (2000), Mixed-Effects Models in S and S-PLUS, Springer, New York.
    Copyright (©) 1999–2012 R Foundation for Statistical Computing.
Licensed under the GNU General Public License.