March 2017
Beginner to intermediate
868 pages
18h 52m
English
Every chart makes assumptions about the kind and structure of the data that they can display. A scatter plot needs pairs of quantitative values, a bar chart requires categories with a quantitative dimension, and a tree map needs nested objects. To use a chart, the user will need to group, split, or nest the original dataset to fit the chart requirements. Functions that perform these transformations are called layout algorithms. D3 already provides a good set of layouts, from the simple pie layout to the more complex force layout. In this section, we will lean how to implement a layout algorithm, and we will use it to create a simple visualization using the barcode dataset.
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