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* Example 2.3 from page 33
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open data ceosal1.raw
data(format=free,org=columns) 1 209 salary pcsalary sales roe pcroe ros indus finance consprod utility lsalary lsales
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* Basic statistics on salary and return on equity
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table / salary roe
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linreg salary
# constant roe
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disp "Prediction at ROE=30%" %beta(1)+30*%beta(2)