spaMM (version 3.8.23)

Gryphon: Gryphon data

Description

Loading these data loads three objects describing a mythical 'Gryphon' population used by Wilson et al. to illustrate mixed-effect modelling in quantitative genetics. These objects are a data frame Gryphon_df containing the model variables, a genetic relatedness matrix Gryphon_A, and another data frame Gryphon_pedigree containing pedigree information (which can be used by some packages to reconstruct the relatedness matrix).

Usage

data("Gryphon")

Format

Gryphon_df is

'data.frame':	1084 obs. of  6 variables:
 $ ID    : int  1029 1299 ...:               individual identifier 
 $ sex   : Factor w/ 2 levels "1","2":       sex, indeed
 $ year  : Factor w/ 34 levels "968","970", ...: birth year
 $ mother: Factor w/ 429 levels "1","2",..:  individual's mother identifier 
 $ BWT   : num  10.77 9.3  ...:              birth weight 
 $ TARSUS: num  24.8 22.5 12 ...:            tarsus length

Gryphon_A is a genetic relatedness matrix, in sparse matrix format, for 1309 individuals.

Gryphon_pedigree is

'data.frame':	1309 obs. of  3 variables:
 $ ID  : int  1306 1304 ...: individual identifier 
 $ Dam : int  NA NA ...:     individual's mother    
 $ Sire: int  NA NA ...:     individual's father

References

Wilson AJ, et al. (2010) An ecologist's guide to the animal model. Journal of Animal Ecology 79(1): 13-26. 10.1111/j.1365-2656.2009.01639.x

Examples

# NOT RUN {
# See help("sparse_precision")
# }