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Validate Your Data
Validate Your Data
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Written by Steve Olson
Updated over 2 years ago

Summary:

The process of cleansing, enhancing, and transforming your data can introduce significant changes to it, some of which might not be intended. This page provides some tips and techniques for validating your dataset, from start to finish for your data wrangling efforts.

Data validation can be broken down into the following categories:

  • Consistency - Does your data fit into expected values for it? Do field values match the data type for the column? Are values within acceptable ranges? Are rows unique? Duplicated?

  • Completeness - Are all expected values included in your data? Are some fields missing values? Are there expected values that are not present in the dataset?

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