1 Brush salmon fillets on both sides with 1/4 cup butter, and sprinkle evenly with the cayenne pepper mixture. 2  Drizzle one side of each fillet with 1/2 remaining butter. 3  In a large, heavy skillet over high heat, cook salmon, butter side down, until blackened, 2 to 5 minutes. Brush salmon fillets on both sides with 1/4 cup butter, and sprinkle evenly with the cayenne pepper mixture. 2  Drizzle one side of each fillet with 1/2 remaining butter. 3  In a large, heavy skillet over high heat, cook salmon, butter side down, until blackened, 2 to 5 minutes.
The intercept (often labeled the constant) is the expected mean value of Y when all X=0. Start with a regression equation with one predictor, X. If X sometimes = 0, the intercept is simply the expected mean value of Y at that value. If X never = 0, then the intercept has no intrinsic meaning. In scientific research, the purpose of a regression model is to understand the relationship between predictors and the response. If so, and if X never = 0, there is no interest in the intercept.
In this case, the intercept is the mean of the reference group, and each of the unstandardized regression coefficients is the difference in the dependent variable between one of the treatment groups and the mean of the reference group (or control group).