I forgot to submit checkpoint 2 reflection earlier. I am not sure what kind of thinking I am doing. Top to bottom vs bottom to top? I kept trying to thinking which one I am using while I am working on checkpoint 2 assignment questions, but I still don't know. I intially thought it is top to bottom, but at the end of the work, bottom to top would be more reasonable apporach. I was continuously thinking of why we would need 'ratio' or 'scale', and it was very difficult to figure ratio and scale at first, and I made many mistakes. Once I think of the whole reason why we would need to use those concepts and how those ideas would be used on the computer screen monitor to create scatter plot, it gets more easier to understand the whole process or reason I need to learn. This is the assignment I talked to many people. I didn't do the work with them, but I asked many questions. The questions was not necessary about what to type, but I had many why questions. There were many metaphors used in their explanation, which I thought intersting.

transform.py

@@ -54,6 +54,7 @@ def scale(value, domain_min, domain_max, range_min, range_max):
     "Given a value within a domain, returns the scaled equivalent within range."
     return ratio(value, domain_min, domain_max)*(range_max - range_min)
 
+
 def get_x_values(points):
     "Returns the first value for each point in points."
     onlyx=[]