More on Making Heat Maps in R
You saw how to make basic heat maps a while back, but you might want more flexibility for a specific data set. Once you understand the components of a heat map, the rest is straightforward.
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Getting Started with Network Graphs in R
Add the vertices. Connect them with edges. Repeat as necessary.
Build Interactive Area Charts with Filters
When you have several time series over many categories, it can be useful to show them separately rather than put it all in one graph. This is one way to do it interactively with categorical filters.
The Baseline and Working with Time Series in R
A big part of statistics is comparisons, and perhaps more importantly, to figure out what to compare things to. Perspective changes with the baseline.