# linear unbiased estimator alternative to OLS [duplicate]

Best regards I need to know, if anyone knows a way to calculate an unbiased linear estimator alternative to the Ordian Least Squares estimator. Any reference or comment, is very appreciated.

• Is this homework? – Adrian Nov 23 '17 at 7:17
• – Christoph Hanck Nov 23 '17 at 7:37