With regard to the above topic and area, I would like to clarify on the following
- I have been following the lessons using the raw file downloaded from Lesson “Introduction to the exercise”. When I reached the Lesson 24, I realized that there are changes made to the data relationship of Chart 3 from Primary-Sales, Secondary-Review to Primary Review, Secondary-Sales. Would like to know the basis for the change.
- Following on with the Lesson 24, after linking audiobook name in the ratio for March and June 2017 will reduce. I created a table to confirm the reduction to be the count of ratings of March (reduces by 6 counts) and June (reduces by 15) which cause the total count of ratings to be 10,777 instead of 10798. I am able to see the full data for March by clicking on the table but I could not extract it. Would like know how could I know which transactions and the reason they were taken out.