Chapter 5 Data Preparasion

“Before anything else, preparation is the key to success” 

                                   --- Alexander Graham Bell

In the previous chapter, we have done Data understanding by examining the quantity and quality of the given data by accessing individual attributes and record levels to do different assessments. After that, we had a pretty good understanding of the raw data in terms of its suitability for analyses. The results of the data assessment set up a number of objectives for the data preprocess or to accomplish, which are what we need to do in the chapter.

First of all, let us briefly review the typical tasks that need to be performed in a typical Data preprocess.