Programming and frameworks for ML Data Cleaning with Python
[Pages:110]Programming and frameworks for ML Data Cleaning with Python
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About Me
Big Data Consultant at Santander / Big Data Lecturer More than 20 years of experience in different environments,
technologies, customers, countries ... Passionate about data and technology Enthusiastic about Big Data world and NoSQL
daniel.villanueva@immune.institute
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Agenda
Introduction Widening tables Narrowing down tables Separating columns Joining columns Missing data Dropping duplicates Data Types Data Formating Regex
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Clean data
Happy families are all alike; every unhappy family is unhappy in its own way.
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Clean data
A clean dataset is easy to analyze, model or visualize
Tidy datasets are all alike, but every messy dataset is messy in its own way.
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Definition
A unit of analysis represents the entity being analysed in a study, and which contains similar features
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Definition
An observation is data collected by observing behavior, events, or physical features.
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Definition
A variable is a property or feature that can change depending on certain factors (the person, the weather, the country, etc.)
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