We can get the frequency of items and then percentage or even calculating cumulative percentage. Consider this following example to consider that. A frequency table shows how the values of a variable are distributed over the cases. A good way to do that is to make a frequency table. To get more insight, summarization of the information is very useful. Sample from IRIS Dataset has shown below. Each row of a data matrix represents a case and each column represent a variable.Ī complete Data Matrix may contain thousands or lakhs or even more cases. So, Data Matrix is the tabular format representation of cases and variables of your statistical study. The best way to order all this information is by means of a data matrix.
![genodive sample data matrix genodive sample data matrix](https://cdn.sketchbubble.com/pub/media/catalog/product/optimized/e/e/eea24e6e0164a63246a0baba81c6a884f909b7ae45f5d1af424ceae10a576fb0/hr-plan-development-mc-slide2.png)
![genodive sample data matrix genodive sample data matrix](https://ijmem.avestia.com/2014/001-IJMEM_files/figure3.jpg)
Here, the cases you’re interested in are individual football players within the league, and the variables you focus on are age, body weight, goals scored, team membership and hair color. Lets take an example, imagine you are interested in the “Primera División”, the top football competition in Spain. Here, I will discuss how you can order and present your cases and variables. If you’re conducting a study, you should think about your data in terms of cases and variables.Ĭases are the persons, animals or things in your study, and variables are the characteristics of interest.