country | suit_color | shirt_color | tie_color |
---|---|---|---|
A | white | blue | black |
B | orange | blue | pink |
C | white | white | white |
D | orange | blue | pink |
E | white | white | white |
In the above example, how can I drop the observations that have all "white" under the color-related variables?
library(dplyr)
df <- tribble(
~country, ~ suit_color, ~ shirt_color, ~tie_color,
"A", "white", "blue", "black",
"B", "orange", "blue", "pink",
"C", "white", "white", "white",
"D", "orange", "blue", "pink",
"E", "white", "white", "white"
)