Heteroskedasticity (Need Help)
Posted: Sat Feb 07, 2015 2:48 am
Dear All,
I am stuck with a problem. I have made a model of growth of gdp as dependent variable and growth agriculture, services and manufacturing sectors as independent variables.
The regression was found significant along and autocorrelation is also fine. However, I am having problem in heteroskedasticity.
The heterskedasticity was found present in the model. My problem is that the data has some negative values due to which I can't take the log of the values to transform and run the model again.
Any suggestions?
Regards,
Bilal Ahmed
I am stuck with a problem. I have made a model of growth of gdp as dependent variable and growth agriculture, services and manufacturing sectors as independent variables.
The regression was found significant along and autocorrelation is also fine. However, I am having problem in heteroskedasticity.
The heterskedasticity was found present in the model. My problem is that the data has some negative values due to which I can't take the log of the values to transform and run the model again.
Any suggestions?
Regards,
Bilal Ahmed