Convert variables to logical
convert_to_logical.RdThis is particularly useful for binary variables that have been encoded with e.g. Yes and No as options. Variable labels are retained, which may or may not make sense, depending on the variable
Examples
data(mtcars)
convert_to_logical(mtcars, "am", 1)
#> mpg cyl disp hp drat wt qsec vs am gear carb
#> Mazda RX4 21.0 6 160.0 110 3.90 2.620 16.46 0 TRUE 4 4
#> Mazda RX4 Wag 21.0 6 160.0 110 3.90 2.875 17.02 0 TRUE 4 4
#> Datsun 710 22.8 4 108.0 93 3.85 2.320 18.61 1 TRUE 4 1
#> Hornet 4 Drive 21.4 6 258.0 110 3.08 3.215 19.44 1 FALSE 3 1
#> Hornet Sportabout 18.7 8 360.0 175 3.15 3.440 17.02 0 FALSE 3 2
#> Valiant 18.1 6 225.0 105 2.76 3.460 20.22 1 FALSE 3 1
#> Duster 360 14.3 8 360.0 245 3.21 3.570 15.84 0 FALSE 3 4
#> Merc 240D 24.4 4 146.7 62 3.69 3.190 20.00 1 FALSE 4 2
#> Merc 230 22.8 4 140.8 95 3.92 3.150 22.90 1 FALSE 4 2
#> Merc 280 19.2 6 167.6 123 3.92 3.440 18.30 1 FALSE 4 4
#> Merc 280C 17.8 6 167.6 123 3.92 3.440 18.90 1 FALSE 4 4
#> Merc 450SE 16.4 8 275.8 180 3.07 4.070 17.40 0 FALSE 3 3
#> Merc 450SL 17.3 8 275.8 180 3.07 3.730 17.60 0 FALSE 3 3
#> Merc 450SLC 15.2 8 275.8 180 3.07 3.780 18.00 0 FALSE 3 3
#> Cadillac Fleetwood 10.4 8 472.0 205 2.93 5.250 17.98 0 FALSE 3 4
#> Lincoln Continental 10.4 8 460.0 215 3.00 5.424 17.82 0 FALSE 3 4
#> Chrysler Imperial 14.7 8 440.0 230 3.23 5.345 17.42 0 FALSE 3 4
#> Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 1 TRUE 4 1
#> Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 1 TRUE 4 2
#> Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 1 TRUE 4 1
#> Toyota Corona 21.5 4 120.1 97 3.70 2.465 20.01 1 FALSE 3 1
#> Dodge Challenger 15.5 8 318.0 150 2.76 3.520 16.87 0 FALSE 3 2
#> AMC Javelin 15.2 8 304.0 150 3.15 3.435 17.30 0 FALSE 3 2
#> Camaro Z28 13.3 8 350.0 245 3.73 3.840 15.41 0 FALSE 3 4
#> Pontiac Firebird 19.2 8 400.0 175 3.08 3.845 17.05 0 FALSE 3 2
#> Fiat X1-9 27.3 4 79.0 66 4.08 1.935 18.90 1 TRUE 4 1
#> Porsche 914-2 26.0 4 120.3 91 4.43 2.140 16.70 0 TRUE 5 2
#> Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 1 TRUE 5 2
#> Ford Pantera L 15.8 8 351.0 264 4.22 3.170 14.50 0 TRUE 5 4
#> Ferrari Dino 19.7 6 145.0 175 3.62 2.770 15.50 0 TRUE 5 6
#> Maserati Bora 15.0 8 301.0 335 3.54 3.570 14.60 0 TRUE 5 8
#> Volvo 142E 21.4 4 121.0 109 4.11 2.780 18.60 1 TRUE 4 2
convert_to_logical(mtcars, c("am", "vs"), 1)
#> mpg cyl disp hp drat wt qsec vs am gear carb
#> Mazda RX4 21.0 6 160.0 110 3.90 2.620 16.46 FALSE TRUE 4 4
#> Mazda RX4 Wag 21.0 6 160.0 110 3.90 2.875 17.02 FALSE TRUE 4 4
#> Datsun 710 22.8 4 108.0 93 3.85 2.320 18.61 TRUE TRUE 4 1
#> Hornet 4 Drive 21.4 6 258.0 110 3.08 3.215 19.44 TRUE FALSE 3 1
#> Hornet Sportabout 18.7 8 360.0 175 3.15 3.440 17.02 FALSE FALSE 3 2
#> Valiant 18.1 6 225.0 105 2.76 3.460 20.22 TRUE FALSE 3 1
#> Duster 360 14.3 8 360.0 245 3.21 3.570 15.84 FALSE FALSE 3 4
#> Merc 240D 24.4 4 146.7 62 3.69 3.190 20.00 TRUE FALSE 4 2
#> Merc 230 22.8 4 140.8 95 3.92 3.150 22.90 TRUE FALSE 4 2
#> Merc 280 19.2 6 167.6 123 3.92 3.440 18.30 TRUE FALSE 4 4
#> Merc 280C 17.8 6 167.6 123 3.92 3.440 18.90 TRUE FALSE 4 4
#> Merc 450SE 16.4 8 275.8 180 3.07 4.070 17.40 FALSE FALSE 3 3
#> Merc 450SL 17.3 8 275.8 180 3.07 3.730 17.60 FALSE FALSE 3 3
#> Merc 450SLC 15.2 8 275.8 180 3.07 3.780 18.00 FALSE FALSE 3 3
#> Cadillac Fleetwood 10.4 8 472.0 205 2.93 5.250 17.98 FALSE FALSE 3 4
#> Lincoln Continental 10.4 8 460.0 215 3.00 5.424 17.82 FALSE FALSE 3 4
#> Chrysler Imperial 14.7 8 440.0 230 3.23 5.345 17.42 FALSE FALSE 3 4
#> Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 TRUE TRUE 4 1
#> Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 TRUE TRUE 4 2
#> Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 TRUE TRUE 4 1
#> Toyota Corona 21.5 4 120.1 97 3.70 2.465 20.01 TRUE FALSE 3 1
#> Dodge Challenger 15.5 8 318.0 150 2.76 3.520 16.87 FALSE FALSE 3 2
#> AMC Javelin 15.2 8 304.0 150 3.15 3.435 17.30 FALSE FALSE 3 2
#> Camaro Z28 13.3 8 350.0 245 3.73 3.840 15.41 FALSE FALSE 3 4
#> Pontiac Firebird 19.2 8 400.0 175 3.08 3.845 17.05 FALSE FALSE 3 2
#> Fiat X1-9 27.3 4 79.0 66 4.08 1.935 18.90 TRUE TRUE 4 1
#> Porsche 914-2 26.0 4 120.3 91 4.43 2.140 16.70 FALSE TRUE 5 2
#> Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 TRUE TRUE 5 2
#> Ford Pantera L 15.8 8 351.0 264 4.22 3.170 14.50 FALSE TRUE 5 4
#> Ferrari Dino 19.7 6 145.0 175 3.62 2.770 15.50 FALSE TRUE 5 6
#> Maserati Bora 15.0 8 301.0 335 3.54 3.570 14.60 FALSE TRUE 5 8
#> Volvo 142E 21.4 4 121.0 109 4.11 2.780 18.60 TRUE TRUE 4 2
convert_to_logical(mtcars, c("am", "vs"), 1, FALSE)
#> mpg cyl disp hp drat wt qsec vs am gear carb
#> Mazda RX4 21.0 6 160.0 110 3.90 2.620 16.46 0 1 4 4
#> Mazda RX4 Wag 21.0 6 160.0 110 3.90 2.875 17.02 0 1 4 4
#> Datsun 710 22.8 4 108.0 93 3.85 2.320 18.61 1 1 4 1
#> Hornet 4 Drive 21.4 6 258.0 110 3.08 3.215 19.44 1 0 3 1
#> Hornet Sportabout 18.7 8 360.0 175 3.15 3.440 17.02 0 0 3 2
#> Valiant 18.1 6 225.0 105 2.76 3.460 20.22 1 0 3 1
#> Duster 360 14.3 8 360.0 245 3.21 3.570 15.84 0 0 3 4
#> Merc 240D 24.4 4 146.7 62 3.69 3.190 20.00 1 0 4 2
#> Merc 230 22.8 4 140.8 95 3.92 3.150 22.90 1 0 4 2
#> Merc 280 19.2 6 167.6 123 3.92 3.440 18.30 1 0 4 4
#> Merc 280C 17.8 6 167.6 123 3.92 3.440 18.90 1 0 4 4
#> Merc 450SE 16.4 8 275.8 180 3.07 4.070 17.40 0 0 3 3
#> Merc 450SL 17.3 8 275.8 180 3.07 3.730 17.60 0 0 3 3
#> Merc 450SLC 15.2 8 275.8 180 3.07 3.780 18.00 0 0 3 3
#> Cadillac Fleetwood 10.4 8 472.0 205 2.93 5.250 17.98 0 0 3 4
#> Lincoln Continental 10.4 8 460.0 215 3.00 5.424 17.82 0 0 3 4
#> Chrysler Imperial 14.7 8 440.0 230 3.23 5.345 17.42 0 0 3 4
#> Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 1 1 4 1
#> Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 1 1 4 2
#> Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 1 1 4 1
#> Toyota Corona 21.5 4 120.1 97 3.70 2.465 20.01 1 0 3 1
#> Dodge Challenger 15.5 8 318.0 150 2.76 3.520 16.87 0 0 3 2
#> AMC Javelin 15.2 8 304.0 150 3.15 3.435 17.30 0 0 3 2
#> Camaro Z28 13.3 8 350.0 245 3.73 3.840 15.41 0 0 3 4
#> Pontiac Firebird 19.2 8 400.0 175 3.08 3.845 17.05 0 0 3 2
#> Fiat X1-9 27.3 4 79.0 66 4.08 1.935 18.90 1 1 4 1
#> Porsche 914-2 26.0 4 120.3 91 4.43 2.140 16.70 0 1 5 2
#> Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 1 1 5 2
#> Ford Pantera L 15.8 8 351.0 264 4.22 3.170 14.50 0 1 5 4
#> Ferrari Dino 19.7 6 145.0 175 3.62 2.770 15.50 0 1 5 6
#> Maserati Bora 15.0 8 301.0 335 3.54 3.570 14.60 0 1 5 8
#> Volvo 142E 21.4 4 121.0 109 4.11 2.780 18.60 1 1 4 2
#> am_logical vs_logical
#> Mazda RX4 TRUE FALSE
#> Mazda RX4 Wag TRUE FALSE
#> Datsun 710 TRUE TRUE
#> Hornet 4 Drive FALSE TRUE
#> Hornet Sportabout FALSE FALSE
#> Valiant FALSE TRUE
#> Duster 360 FALSE FALSE
#> Merc 240D FALSE TRUE
#> Merc 230 FALSE TRUE
#> Merc 280 FALSE TRUE
#> Merc 280C FALSE TRUE
#> Merc 450SE FALSE FALSE
#> Merc 450SL FALSE FALSE
#> Merc 450SLC FALSE FALSE
#> Cadillac Fleetwood FALSE FALSE
#> Lincoln Continental FALSE FALSE
#> Chrysler Imperial FALSE FALSE
#> Fiat 128 TRUE TRUE
#> Honda Civic TRUE TRUE
#> Toyota Corolla TRUE TRUE
#> Toyota Corona FALSE TRUE
#> Dodge Challenger FALSE FALSE
#> AMC Javelin FALSE FALSE
#> Camaro Z28 FALSE FALSE
#> Pontiac Firebird FALSE FALSE
#> Fiat X1-9 TRUE TRUE
#> Porsche 914-2 TRUE FALSE
#> Lotus Europa TRUE TRUE
#> Ford Pantera L TRUE FALSE
#> Ferrari Dino TRUE FALSE
#> Maserati Bora TRUE FALSE
#> Volvo 142E TRUE TRUE
convert_to_logical(mtcars, c("am", "vs"), 1, FALSE, "_lgl")
#> mpg cyl disp hp drat wt qsec vs am gear carb am_lgl
#> Mazda RX4 21.0 6 160.0 110 3.90 2.620 16.46 0 1 4 4 TRUE
#> Mazda RX4 Wag 21.0 6 160.0 110 3.90 2.875 17.02 0 1 4 4 TRUE
#> Datsun 710 22.8 4 108.0 93 3.85 2.320 18.61 1 1 4 1 TRUE
#> Hornet 4 Drive 21.4 6 258.0 110 3.08 3.215 19.44 1 0 3 1 FALSE
#> Hornet Sportabout 18.7 8 360.0 175 3.15 3.440 17.02 0 0 3 2 FALSE
#> Valiant 18.1 6 225.0 105 2.76 3.460 20.22 1 0 3 1 FALSE
#> Duster 360 14.3 8 360.0 245 3.21 3.570 15.84 0 0 3 4 FALSE
#> Merc 240D 24.4 4 146.7 62 3.69 3.190 20.00 1 0 4 2 FALSE
#> Merc 230 22.8 4 140.8 95 3.92 3.150 22.90 1 0 4 2 FALSE
#> Merc 280 19.2 6 167.6 123 3.92 3.440 18.30 1 0 4 4 FALSE
#> Merc 280C 17.8 6 167.6 123 3.92 3.440 18.90 1 0 4 4 FALSE
#> Merc 450SE 16.4 8 275.8 180 3.07 4.070 17.40 0 0 3 3 FALSE
#> Merc 450SL 17.3 8 275.8 180 3.07 3.730 17.60 0 0 3 3 FALSE
#> Merc 450SLC 15.2 8 275.8 180 3.07 3.780 18.00 0 0 3 3 FALSE
#> Cadillac Fleetwood 10.4 8 472.0 205 2.93 5.250 17.98 0 0 3 4 FALSE
#> Lincoln Continental 10.4 8 460.0 215 3.00 5.424 17.82 0 0 3 4 FALSE
#> Chrysler Imperial 14.7 8 440.0 230 3.23 5.345 17.42 0 0 3 4 FALSE
#> Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 1 1 4 1 TRUE
#> Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 1 1 4 2 TRUE
#> Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 1 1 4 1 TRUE
#> Toyota Corona 21.5 4 120.1 97 3.70 2.465 20.01 1 0 3 1 FALSE
#> Dodge Challenger 15.5 8 318.0 150 2.76 3.520 16.87 0 0 3 2 FALSE
#> AMC Javelin 15.2 8 304.0 150 3.15 3.435 17.30 0 0 3 2 FALSE
#> Camaro Z28 13.3 8 350.0 245 3.73 3.840 15.41 0 0 3 4 FALSE
#> Pontiac Firebird 19.2 8 400.0 175 3.08 3.845 17.05 0 0 3 2 FALSE
#> Fiat X1-9 27.3 4 79.0 66 4.08 1.935 18.90 1 1 4 1 TRUE
#> Porsche 914-2 26.0 4 120.3 91 4.43 2.140 16.70 0 1 5 2 TRUE
#> Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 1 1 5 2 TRUE
#> Ford Pantera L 15.8 8 351.0 264 4.22 3.170 14.50 0 1 5 4 TRUE
#> Ferrari Dino 19.7 6 145.0 175 3.62 2.770 15.50 0 1 5 6 TRUE
#> Maserati Bora 15.0 8 301.0 335 3.54 3.570 14.60 0 1 5 8 TRUE
#> Volvo 142E 21.4 4 121.0 109 4.11 2.780 18.60 1 1 4 2 TRUE
#> vs_lgl
#> Mazda RX4 FALSE
#> Mazda RX4 Wag FALSE
#> Datsun 710 TRUE
#> Hornet 4 Drive TRUE
#> Hornet Sportabout FALSE
#> Valiant TRUE
#> Duster 360 FALSE
#> Merc 240D TRUE
#> Merc 230 TRUE
#> Merc 280 TRUE
#> Merc 280C TRUE
#> Merc 450SE FALSE
#> Merc 450SL FALSE
#> Merc 450SLC FALSE
#> Cadillac Fleetwood FALSE
#> Lincoln Continental FALSE
#> Chrysler Imperial FALSE
#> Fiat 128 TRUE
#> Honda Civic TRUE
#> Toyota Corolla TRUE
#> Toyota Corona TRUE
#> Dodge Challenger FALSE
#> AMC Javelin FALSE
#> Camaro Z28 FALSE
#> Pontiac Firebird FALSE
#> Fiat X1-9 TRUE
#> Porsche 914-2 FALSE
#> Lotus Europa TRUE
#> Ford Pantera L FALSE
#> Ferrari Dino FALSE
#> Maserati Bora FALSE
#> Volvo 142E TRUE