Topic: Direction on Interpreting graphs?
I'm trying to learn how to interpret some elements in the Website Ranking graph.
First, is there a tutorial page that explains the graphs?
The particular issues are:
1) I see the use of circles, squares and triangles as points between time frames... what are the meanings of these various shapes?
2) There are occasional gaps between time frames (where the line does not connect the square or circle). What is happening here?