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What does the "vs" variable mean in the "mtcars" dataset in R? The helpfile says it means "V/S" but that is not enlightening.
Commands:
data(mtcars)
head(mtcars)
?mtcars
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Using pairs(mtcars), we get that fuel consumption increases as the number of cylinders (cyl), displacement (disp), horsepower (hp), and weight (wt) increase. That is to say, as these variables increase, the Miles per gallon (MPG) of cars dereases.
The data was extracted from the 1974 Motor Trend US magazine, and comprises fuel consumption and 10 aspects of automobile design and performance for 32 automobiles (1973–74 models). A data frame with 32 observations on 11 variables.
CYL. The abbreviation stands for Cylinder. It represents the amount of lens power you need for astigmatism. If you do not have astigmatism, you may not have anything indicated in this column.
What is this? We can see that the dataset has 32 rows and 11 columns.
I think it's whether the car has a V engine or a straight engine. I'm basing this on the foot note on the page numered 396 of http://www.mortality.org/INdb/2008/02/12/8/document.pdf
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Binary variable signaling the engine cylinder configuration as either:
V-shape (vs=0) or Straight Line (vs=1)
Configuration offers trade offs in power/torque, design usage in terms of space/size of engine and performance or center of gravity of vehicle. The geometry and placement of the engine, as influenced by its cylinder head, can have numerous knock-on influences on the vehicle beyond the technical engineering considerations of the cyliner angle.
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