Correlation - Data Mining for the Masses - page 61

Figure 4-1. The chapter four data set added to the author's RapidMiner Book repository.
2) If your RapidMiner application is not open to a new, blank process window, click the new
process icon, or click File > New to create a new process. Drag your Chapter4 data set
into your main process window. Go ahead and click the run (play) button to examine the
data set's meta data. If you are prompted, you may choose to save your new model. For
this topic's example, we'll save the model as Chapter4_Process.
Figure 4-2. Meta Data view of the chapter four data set.
We can see in Figure 4-2 that our six attributes are shown. There are a total of 1,218
homes represented in the data set. Our data set appears to be very clean, with no missing
values in any of the six attributes, and no inconsistent data apparent in our ranges or other
descriptive statistics. If you wish, you can take a minute to switch to Data View to
familiarize yourself with the data. It feels like these data are in good shape, and are in no
further need of data preparation operators, so we are ready to move on to…