what is the red store called what makes a red store attractive how to find competitive spatial interactions between multiple stores what is the difference between the green store and the red store what is the red store what makes the purple store competitive what is the color of a pushpin in a statistical model where is purple store what does purple store mean which is the red store in the daltonic problem what's the difference between the green store and the red store how to determine if a store is competitive in terms of sales which apushpin is the same store as the green how to measure competitive spatial interaction why are the purple pins in the purple store why is the yellow store in the green store what's the color of a purple store? what is the huff scale? how to capture competitive spatial interactions where would you see purple store versus red store