Principles of Data Wrangling by Tye Rattenbury

Author:Tye Rattenbury
Language: eng
Format: epub
Publisher: O'Reilly Media
Published: 2017-07-14T00:00:00+00:00

Describing Data

Assessing the structure, granularity, accuracy, temporality, and scope of your data is a profiling-heavy activity. The range of profiling views of your data required to build a broad understanding of your data will also require an exploratory range of transformations. Most of the exploratory transformations will involve structuring: breaking out subcomponents of existing values to assess their quality and consistency, filtering the dataset down to subsets of records to assess scope and accuracy, aggregating and pivoting the data to triangulate values against other internal and external references, and so on.

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