Use of ~ (tilde) in R programming Language?

Question

I saw in a tutorial about regression modeling the following command : myFormula <- Species ~ Sepal.Length + Sepal.Width + Petal.Length + Petal.WidthWhat exactly does this command do, and what is the role of `~` (tilde) in the command?

Answer 1

It is an operator. Basically telling R to define the function, which is not the same as assigning a value to an object (i.e., = or <-). So, species is a function of sepal.length, sepal.width, and petal.width.