Study design

Distribution analysis study requirements and dataset layout.

Requirements

  • A categorical or quantitative variable.

Dataset layout

Use a column for each variable (Height, Eye color); each row has the values of the variables for a case (Subject).

Subject (optional) Height Eye color
1 175 Blue
2 180 Blue
3 160 Hazel
4 190 Green
5 180 Green
6 150 Brown
7 140 Blue
8 160 Brown
9 165 Green
10 180 Hazel

Frequency form dataset layout

Use a column for the variable (Eye color) and a column for the number of cases (Frequency); each row has the values of the variables and the frequency count.

Eye color Frequency
Brown 221
Blue 215
Hazel 93
Green 64