Description
grass: Plant height measurements on 14 plants at 5 occasions.
Usage
grass
To load the file into ASReml-R and view the contents use the commands:
library(asreml)
data(package="asreml")
data("grass")
View(grass)
Format
| A data frame with 7 columns and 14 rows: | |
| Tmt | A factor with 2 levels, diseased or healthy |
| Plant | A factor with 14 levels |
| y1 | Plant height at week 1 |
| y3 | Plant height at week 3 |
| y5 | Plant height at week 5 |
| y7 | Plant height at week 7 |
| y10 | Plant height at week 10 |
Details
The 14 plants were either diseased or healthy and were arranged in a glasshouse in a completely random design. Plant heights were measured 1, 3, 5, 7 and 10 weeks after the plants were placed in the glasshouse. There were 7 plants in each treatment.
Source
J. Lamptey, Rothamsted Experimental Station, UK.