An alternative approach is to use an empirical correlation between R and he continuum luminosity.

His theory was the result of his attempt to study two fields, crime and high society, which had previously lacked empirical correlation.

An empirical correlation of bedload transport rates in flumes and natural rivers.

Unfortunately concerning a multiverse there is a lack of empirical correlation.

These empirical correlations are presented for their particular geometry and flow conditions.

Note that this empirical correlation is specific to the units given.

The models used for estimation were empirical correlations for Leading-edge losses and passage shock loss model.

An empirical correlation does not necessarily imply cause.

Lucas argued that models should be based on theory, not on empirical correlations.

He said that empirical correlations were sensitive to policy changes, and only a model based on theory could account for shifting policy environments.