Theory and Practice of Visualization Exercise 2

Imports


In [2]:
from IPython.display import Image

Violations of graphical excellence and integrity

Find a data-focused visualization on one of the following websites that is a negative example of the principles that Tufte describes in The Visual Display of Quantitative Information.

Upload the image for the visualization to this directory and display the image inline in this notebook.


In [3]:
# Add your filename and uncomment the following line:
Image(filename='surface-temperatures.png')


Out[3]:

Describe in detail the ways in which the visualization violates graphical integrity and excellence:

This visual represents the water temperatures across Earth's oceans.

This visual violates graphical excellence because it focuses on the artistic design of the visual rather than the data. It doesn't have any sort of scale identifying for the viewer what temperature ranges the different colors represent. It definitely violates the idea of presenting most data with least amount of ink because it details the continents which are at all a part in the data it is trying to represent. It doesn't reveal the data in varying levels of detail because the only indication the viewer has is a color representation without any scale.

It violates grpahical integrity because it claims to represent the global ocean temperatures although it excludes the pacific ocean completely. It also is very ambigious due to its lack of labeling. This visual overall focuses on the design quality without stressing the quality of the data which is misleading and overall uninformative.


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