Welcome to data science's dirty secret: real-world data is messy.
Data scientists must spend a good deal of time playing software developer, writing code to clean up data before they can actually do anything constructive with it.
This is a necessary evil, but we can still make the most of it.
| Secret | Realworld data is messy |
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O'reilly Media, Inc, Usa Bad data handbook. cleaning up the data so you can get back to work, paperback/q. ethan mccallum
