Data Frame Example - "cars"
Q
What is the Data Frame Example, "cars"?
✍: FYIcenter.com
A
"cars" is a built-in data frame example in R environment.
"cars" has two columns: "speed" and "dist".
Each row records an instance of the stopping distance of
a car driving at a given speed.
Note that the data were recorded in the 1920s.
1. Basic info on "cars":
> cars speed dist 1 4 2 2 4 10 3 7 4 4 7 22 5 8 16 6 9 10 ... > typeof(cars) [1] "list" > dim(cars) [1] 50 2
2. Get some statistics on "cars":
> mean(cars[[1]]) [1] 15.4 > mean(cars[, "speed"]) [1] 15.4 > mean(cars[[2]]) [1] 42.98 > max(cars[[2]]) [1] 120 > max(cars[, "dist"]) [1] 120
2023-05-31, 1172🔥, 0💬
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