I was studying by my own correspondence analysis and I got some questions about the map that one gets using this method for some rows and columns. For example the following map: http://www.statmethods.net/advstats/images/ca3.jpg
The questions that are troubling me are the following:
- The quadrants have relevant importance? I mean, that some words are in one quadrant and not in another. I thought that the most important thing in correspondence analysis were distances between the words and the origin.
- The distances between words are important, true? Not only between one word and the origin.
- Is the same to put the words in the symmetric way? I mean, "Brown" and "Black" to be in the upper quadrant and "Red", "Haze," and "Brown" downstairs, and the same with the righthandside. With this I wanted to know if is relevant or not to be in a negative quadrant.
I will be really grateful if someone can explain me this doubts, because I have spend many days reading articles and books and I don't get this information. I'm actually interested in buying the book "Correspondece analysis in practice", by Michael Greenacre.