This R protocol shows the steps I took to create the plots for my article on stock quote correlations. You might also be interested in what the difference is between a long and a wide table and how to set up a data source in Windows 7 for R and MySQL.
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Tag Archives: correlogram
Correlations of quotes for 30 German stocks
For a new data article I thought it would be interesting to see if a tabular visualization of stock quote correlations might unveil interesting patterns. So for the purpose of investigating the correlations I came up with a little javascript web application that allows you to zoom into a scatter plot matrix, a density plot matrix and a correlogram (next to each other) to have closer look at an individual plot for two stocks.
The top row keeps the maps and the bottom row the respective magnifying areas. On the right hand side you will find explanations on how to use this tool and further explanatory links. The combination of placing red and green mark lines aiming at a field at a high zoom level allows you to quickly locate the plot you are looking for.