Fitting a regression equation (model) Building a Bivariate linear regression model to represent the relationship between two variables by a straight line involves determining the coefficients of that line, a process known as fitting the regression line.
Signs and symptoms of blind loop syndrome often include: 1  Loss of appetite. 2  Abdominal pain. 3  Nausea. Bloating.  An uncomfortable feeling of fullness after 1  eating. Diarrhea.  Unintentional weight loss.
You might not have symptoms in the early stages of diabetic retinopathy. As the condition progresses, diabetic retinopathy symptoms may include: Spots or dark strings floating in your vision (floaters) Blurred vision. Fluctuating vision. Impaired color vision. Dark or empty areas in your vision. Vision loss.