Parametritetty

Parametritetty is a Finnish adjective meaning parameterized, formed from the noun parametri with the suffix -tty. It describes objects, models, or constructs that are defined or described in terms of parameters.

In mathematics, a parametritetty object is expressed as functions of one or more parameters. A parametrized curve in the plane, for example, is given by x = x(t) and y = y(t) for t in an interval. The set of points traced by t is the image of the parameterization. Reparameterization can change the parameter without altering the underlying geometric object, illustrating that a given object may be parametritetty in several different ways.

In computing, a parametritetty construct uses placeholders for values. Parameterized queries separate code from data, improving security and flexibility by preventing certain types of injection attacks. Parameterized tests run the same test logic with multiple input values, increasing coverage without duplicating code.

In statistics and modeling, a parametrized model defines distributions or relationships through a finite vector of parameters. These parameters are typically estimated from data, and the chosen parametrization can influence interpretability, identifiability, and computational efficiency.

See also: parametrointi (the process of parameterizing) and related terms such as parametrisoitu. The notion of parameterization and parametrization is central to expressing complex objects compactly and to enabling systematic analysis across mathematics, computer science, and data science.