Frequency Distribution

> (Statistics|Probability|Machine Learning|Data Mining|Data and Knowledge Discovery|Pattern Recognition|Data Science|Data Analysis)

1 - About

A frequency distribution is a distribution of the frequency of each element

  • ie the count of each element in a set
  • or the count of each element in a period
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3 - Structure

3.1 - Mathematics

3.2 - Relational table (Sql)

SELECT element, COUNT(1)
FROM 
SET
GROUP BY element;

4 - Visualization