Determine the variables in a mpoly object.

Determine the variables in a mpoly object.

vars(p)

Arguments

p	An mpoly or mpolyList object.

Value

A character vector of the variable names.

Examples

p <- mp("x + y^2")
vars(p)
#> <list_of<quosure>>
#> 
#> [[1]]
#> <quosure>
#> expr: ^p
#> env:  0x7fae39bfbd68
#> 

p <- mp(c("x + y^2", "y - 2 x"))
vars(p)
#> <list_of<quosure>>
#> 
#> [[1]]
#> <quosure>
#> expr: ^p
#> env:  0x7fae39bfbd68
#>