Simulated Data from Shipley (2009)
Format
A data frame with 1900 observations and 9 variables:
- site
a numeric code giving the site from which the observation comes
- tree
a numeric code giving the tree from which the observation comes
- lat
the latitude of the site
- year
the year in which the observation was taken
- Date
the Julian date when the bud burst occurs
- DD
the number of degree days when bud burst occurs
- Growth
the increase in diameter growth of the tree
- Survival
the probability of survival until the next year (used only for the simulation)
- Live
a binary value (1 = tree lived the following winter, 0 = tree died the following winter)
References
Shipley, B. (2009). Confirmatory path analysis in a generalized multilevel context. Ecology, 90(2), 363-368. doi:10/bqd43d