Description Usage Arguments Value Author(s) References
This is an internal function to generate the design matrix required to define different means for each hypothesised rate category.
1 |
y |
The response variable - typically a continuous trait. |
x |
The explanatory (discrete) variable used to define the hypothesised rate categories. Can be specified as a column number or column name. |
data |
A data frame containing (minimally) the x and y variables as columns with species names as rownames. |
common.mean |
a logical specififying whether each rate category should have its own mean ( |
A design matrix
Gavin Thomas
Thomas GH, Freckleton RP, & Szekely T. 2006. Comparative analyses of the influence of developmental mode on phenotypic diversification rates in shorebirds. Proceedings of the Royal Society B 273, 1619-1624. Thomas GH, Meiri S, & Phillimore AB. 2009. Body size diversification in Anolis: novel environments and island effects. Evolution 63, 2017-2030.
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