In the two preceding chapters, you saw examples of graphs used to provide visual insights regarding patterns in the data. The box and whisker plots in Chapter 3, Statistics for Individual Data Elements and Chapter 4, Dealing with Missing Data and Outliers, made it easy to see how many outliers were present in the data. The scatterplot in Chapter 4, Dealing with Missing Data and Outliers, singled out the multivariate outliers quite readily.
This chapter will look at graphs in more detail, both in terms of what is available in SPSS and how graphs can be modified to enhance your ability to see the key patterns in the data.
At the outset, it is worth distinguishing between graphs created to enable the analytical process of data discovery and presentation graphics designed to communicate the findings to a broader audience. The initial focus will be on using...
