− | Quantitative data are expressed numerically. | + | Quantitative data are numerical in nature, with a set, meaningful interval between different measurements. Quantitative data can be further classified as '''discrete''' or '''continuous''': |
| + | Discrete data only include integer values, with decimal places having little or no meaning. 'Count' data, derived by counting the number of events or animals of interest, are a type of discrete data. Examples of discrete data are the number of infected animals within a group, the number of episodes of pathogen shedding following initial infection, the number of piglets born per year, and the number of lactations which the animal has been through. |