Visualizing the Story of Your Data
When you have many relationships between the variables in your dataset, it can be difficult, if not impossible, to hold it in your mind. It's not usually difficult to visualize the story of the data for varA; after all, just how many causal (or rather perceived causal) connections can there be for a single variable? However, when you pull the whole thing together, it can rapidly get away from you. Here's where you need to be able to build a visual representation of all the relationships in the dataset, and I'll present a couple of possibilities to you here.
Node-Link Diagrams
So far, you've investigated the relationships with varA and you have the story of the data for varA (Figure 6.4). Similarly, you've done the same for varB (Figure 6.10), varC (Figure 6.12), and so on, and it's now time to pull the whole thing together; see Figure 6.13.
