4 - WU
Weighted least squares. Select Objects/New Object/Equation . on the workfile menu bar and name the equation . WLS. Enter . PCON REG TAX C. in the equation specification window and select the . Options. button. Check the . Weighted LS/TSL. box , type . 1/REG. for a weight and press . OK. Now you can estimate the equation by pressing OK in the ... ................
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