Different variables will be present in your dataset, and these variables can be recorded with differing degrees of precision. This is referred to as the measuring level. Nominal, ordinal, interval, and ratio are the four main levels of measurement.
It explains the nature of the values allocated to the variables in a data set and is also known as the level of measurement. The term scale of measurement derives from two statistics keywords: measurement and scale. The process of recording observations acquired as part of the investigation is known as measurement.
A variable can be measured at one of four levels: nominal, ordinal, interval, or ratio.
Ordinal data is divided into groups with a natural rank order inside a variable. The distances between the categories, on the other hand, are irregular or uncertain.
Metric and US Standard are the two main "Systems of Measurement."