# optimizer.lin_reg.LinearRegression { #pompon.optimizer.lin_reg.LinearRegression }```pythonoptimizer.lin_reg.LinearRegression(self, optimizer)```## Methods| Name | Description || --- | --- || [regress](#pompon.optimizer.lin_reg.LinearRegression.regress) | solve the linear regression problem |### regress { #pompon.optimizer.lin_reg.LinearRegression.regress }```pythonoptimizer.lin_reg.LinearRegression.regress(lam=0.001, maxbatch=5000)```solve the linear regression problem y = Φ Awhere Φ is the design matrix and A is the coefficient matrix A = (Φ^T Φ + λ I)^{-1} Φ^T y