Complex sentence: Suppose we expect a response variable to be determined by a linear combination of a subset of potential covariates, then the LARS algorithm provides a means of producing an estimate of which variables to include, as well as their coefficients.
Split into simpler sentences: Suppose we expect a response variable to be determined by a linear combination of a subset of potential covariates. Then the LARS algorithm provides a means of producing an estimate of which variables to include, as well as their coefficients.