Create Left Hand Side of Regression Equation

Source: R/estimate_demand.R

Create Left Hand Side of Regression Equation

create_lhs(exog_charac, price, nest_shares)

Arguments

exog_charac	Vector of exogenous product characteristic variables, as a character vector
price	Variable containing market price, as a character string
nest_shares	Vector of nest share variables, as a character vector

Value

A character string with a partial formula of product characteristics and nest shares.