What is the significance between the methods of analysis : horizontal analysis, vertical analysis, and ratio analysis.

I don't know if this is what you are looking for so I am not putting it as an answer in hopes someone else will  chime in.

 

In scientific studies a horizontal study is when you study something happening at a certain time (or at the same, or about the same time). Like seeing how many people are overweight now and how many have heart attacks now.

A vertical study is when you study the same thing over time. Like the Framingham Heart Study, you find a group people and study how things happen to them over many years. Sometimes the group you study is a particular group to see how that group with certain criteria develops. (Maybe you study people who lived within 50 miles or Chernobyl) Sometimes the group is random and representative of a population.