미국대학 데이터 시각화 수치적 데이터와 질적 데이터, 색감과 명도 Columbia Univ Data Viz Quantitative vs Qualitative Data, Hue, Saturation, brightness

Quantitative vs. Qualitative Data
Good use of quantitative`visual signs` to convey the magnitude of the two numbers
I choose 8, 6, and 4 in the order of effectiveness (first one being the best).
8 is the best because it not only graphically shows which number is greater, but also gives the numbers so that I can quantitatively compare them and easily tell the amount of difference. In addition, the graphical representation is very easy to interpret. It is very straightforward and does not requ