get.mod.clmns {mmodely}

Get model columns

Description

Get the variable names from a model string by splitting on "+" and '~' using both 'get.mod.outcome' and 'get.mod.vars'. The results are passed to the comp.data function for eventual use in PGLS modeling. 'gn_sp' is included as it is typically required to link tree tips to rows of the comparative data.

Usage

get.mod.clmns(model, gs.clmn='gn_sp')

Arguments

model

a model string of the form "y ~ x1 + x2 ..."

gs.clmn

the column header for the vector of "Genus_species" names, to link a tree tips to rows

Value

a vector of characters enummerating the columns to retain in PGLS modeling (input to df param in the 'comp.data' function)

Examples

model.columns <- get.mod.clmns(model=formula('y ~ x1 + x2'))