Categorical data
Kategorik veriReading progress stays in this browser only and is removed when you clear site data.
What does it mean?
Categorical data identify the group an observation belongs to. Some categories are unordered; others are ordered, such as low, medium and high.
Think through an example.
You record transport mode as walking, bus or metro. These have no natural order of magnitude.
Test your understanding.
Every categorical variable has a natural ordering.
Make the next connection
Explore related concepts to deepen your understanding.
Put this knowledge into practice.
Practice with short steps in related tools, then test yourself.
Count categories with a PivotTable
Find how many records fall in each category.
Merge spelling variants
Clean inconsistent spellings of the same category.
Read a frequency table
Check category distributions and missing responses.
Count categories including missing values
See category counts and NA values together.
Make a column chart readable
Compare the sizes of categories.
Create a bar chart from frequencies
Work with the mini survey and compare your output with the expected result.
Create a bar chart from frequencies
Work with the mini survey and compare your output with the expected result.
Sources and further reading
Explore the foundations and methodological details in these resources. Examples on this page were created for illustration.
- OpenStax Source in EnglishDefinitions of Statistics, Probability, and Key Terms