Uses the full model syntax.
getVarFormula(formula, data = parent.frame(), intercept = FALSE)a formula.
The right-hand side selects variables;
the left-hand side, if present, is used to set row names.
A . on the right-hand side
indicates to use all variables not in the LHS.
a data frame
a logical indicating whether to include the intercept in the model default: FALSE (no intercept)
getVarFormula( ~ wt + mpg, data = mtcars)
#> wt mpg
#> Mazda RX4 2.620 21.0
#> Mazda RX4 Wag 2.875 21.0
#> Datsun 710 2.320 22.8
#> Hornet 4 Drive 3.215 21.4
#> Hornet Sportabout 3.440 18.7
#> Valiant 3.460 18.1
#> Duster 360 3.570 14.3
#> Merc 240D 3.190 24.4
#> Merc 230 3.150 22.8
#> Merc 280 3.440 19.2
#> Merc 280C 3.440 17.8
#> Merc 450SE 4.070 16.4
#> Merc 450SL 3.730 17.3
#> Merc 450SLC 3.780 15.2
#> Cadillac Fleetwood 5.250 10.4
#> Lincoln Continental 5.424 10.4
#> Chrysler Imperial 5.345 14.7
#> Fiat 128 2.200 32.4
#> Honda Civic 1.615 30.4
#> Toyota Corolla 1.835 33.9
#> Toyota Corona 2.465 21.5
#> Dodge Challenger 3.520 15.5
#> AMC Javelin 3.435 15.2
#> Camaro Z28 3.840 13.3
#> Pontiac Firebird 3.845 19.2
#> Fiat X1-9 1.935 27.3
#> Porsche 914-2 2.140 26.0
#> Lotus Europa 1.513 30.4
#> Ford Pantera L 3.170 15.8
#> Ferrari Dino 2.770 19.7
#> Maserati Bora 3.570 15.0
#> Volvo 142E 2.780 21.4