How do word-based descriptive data relate to numeric-value analytical data?
The values of grain size, percent gravel, carbonate, etc., that are calculated from word-based data are based on Fuzzy Set Theory calculations. They are memberships, reduced to a single value. An analysis is also a single realized value of the Fuzzy Set. Sometimes word-based and numeric-value results are available for the same sample, and then an inter-calibration of the two forms of output can be made.