Performs Segmented Linear Regression on Two Independent
Variables
Description
Implements a specific form of segmented linear regression
with two independent variables. The visualization of that function looks
like a quarter segment of a cowbell giving the package its name.
The package has been specifically constructed for the case where minimum
and maximum value of the dependent and two independent variables
are known a prior, which is usually the case
when those values are derived from Likert scales.