<b>Description</b><br/>A Parameter is a constant used in an algorithm (which can vary from a simple equation to a complex model). The value of the parameter ( <b>ParameterValue</b> ) can be based on one or more <b>DataSet</b>'s which are used to determine that value by means of a <b>ParameterFit</b>.<br/><br/><b>Example:</b><br/>An exponential semi-variogram model (the algorithm) has three parameters: the sill, the nugget and the range. The values of those three parameters are obtained from a series of observations, i.e. a DataSet.<br/>