Categorical Data

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Category: Education

Presentation Description

This is a lecture on how categorical data are analyzed. This lecture was organized by Farrokh Alemi, Ph.D. and is part of the open online course at http://openonlinecourses.com/statistics

Presentation Transcript

Categorical Data :

Categorical Data By Farrokh Alemi, Ph.D.

Count of Categories:

Count of Categories

Frequency Table

Frequency Table

Relative Frequency Table:

Relative Frequency Table

Contingency Table:

Contingency Table

Contingency Table:

Contingency Table Number with severe comorbidity & readmitted

Row Proportions:

Row Proportions 149 / 367

Row Proportions

Row Proportions

Row Proportions

Column Proportions:

Column Proportions

Column Proportions:

Column Proportions

Column Proportions:

Column Proportions

Take Home Lesson:

Categorical variables are examined by counting the portion that fall within them Take Home Lesson

Do One::

Using the following data, (1) create bar plots of frequencies, (2) calculate the row and column proportions, (3) find the portion of patients with no comorbidities who were readmitted Do One: