Winter-wheat yields for three cultivars in three blocks. Each plot contains twelve subplots arranged on two sides of a line-source sprinkler. SAS uses these data in Example 79.6 of the SAS/STAT 14.3 documentation to combine three random-intercept terms with a four-band Toeplitz residual covariance.
Format
A data frame with 108 rows and 6 variables:
- Block
Block identifier with three levels.
- Cult
Winter-wheat cultivar with three levels.
- Sbplt
Ordered subplot position from 1 to 12.
- Irrig
Irrigation level with six levels.
- Dir
Side of the sprinkler with levels North and South.
- Y
Continuous yield response.
Source
SAS Institute Inc. (2017). SAS/STAT 14.3 User's Guide, Example 79.6, Line-Source Sprinkler Irrigation. https://support.sas.com/documentation/onlinedoc/stat/