How is data brought to a normalized form?
sobes.tech AI
Answer from AI
The process of bringing data to a normalized form (normalization) involves transforming data to a common scale or format to facilitate analysis and comparison.
Main normalization methods:
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Min-max normalization: scaling values to the range [0,1]. Formula: (x - min) / (max - min)
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Z-normalization (standardization): transforming data so that they have a mean of 0 and a standard deviation of 1. Formula: (x - mean) / std
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Type conversion: converting data to the required type (e.g., string to number).
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Handling missing values: filling or removing gaps for consistency.
Example: if a test field "response time" has different units (ms, s), normalization will bring all values to a single unit of measurement and scale to compare results correctly.