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Book Overview & Buying
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Table Of Contents
Data Analytics Made Easy
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Although the general concept of data visualization is straightforward, let's take some time to set the scene properly. The essential objective of data visualization is to transfer a message made of data to another human being. Being effective at this communication process implies that the receiver comprehends the original data-based message and "makes sense" of it through cognition. Figure 7.1 shows a graphical representation of a bad attempt of communicating data messages: presenting it all in its original format:
Figure 7.1: Presenting data in its original format: as you can see, the decision-maker is visibly overwhelmed, and the large majority of the data is ignored
The decision-maker here is clearly overwhelmed by such a large amount of raw data being offered. This is understandable: every human being has a limited amount of cognitive capacity, and our brains can only process a certain quantity of information at once. If we try...