The mistake I made is “Number 6: Miss the data type”. When I use excel, I used to focus on the data(only the number), so I usually forgot about the data type. The most serious one was when I typed date without type. It automatically changed to integers, so I could not write down what I really want to type. I tried more than 50 times to type dat…[Read more]
Title: six reasons why china matters
This article provides 6 reasons why China is important in global economy and it explains each reason using adequate data. First, it shows the graph showing nonfinancial debt at a percentage of GDP and second it shows bar graph about the…[Read more]
a. difficult to understand. Visualization purpose is to make it easier to understand but it makes more confused.
Shape is really weird, hard to recognize the relationship.
b. needs improvement in every part
(Wall Street Journal, “Media Agencies Lower Global Ad Spending Forecasts”)
Major media buying agencies expected that the spending for global ad will decrease in 2017 and 2018. GroupM lowered its growth expectation from 4.4% to 3% and Zenith lowered its…[Read more]
One example of conventional wisdom is that graduation elite colleges leads to higher salaries. To test this, we need the ranking of colleges to pick top colleges and the data of salaries of alumni. I think this conventional wisdom cannot be any data we can refer anymore because the society has changed a lot. Getting high quality education is…[Read more]