![]() ![]() I have tried Box-cox transformation but MiniTab is unable to do this as some of the values are zero. I think I can transform the data and then perform regression but I'm not sure and also have some questions regarding the implications of this. Whilst I think it can still be performed I think it affects significance testing which is an issue for me. My data is non-normal which I believe violates one of the key assumptions of multiple linear regression. ![]() ![]() I am aiming to assess the effect of BMI (continuous) on certain biomarkers (also continuous) whilst adjusting for several relevant variables (mixed categorical and continuous) using multiple regression.
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