Wafer {nlme} | R Documentation

## 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 `1` `2` `3` `4` `5` `6` `7` `8` `9` `10`
Site
  a factor with levels `1` `2` `3` `4` `5` `6` `7` `8`
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.

[Package nlme version 3.1-89 Index]