Morpho

Reported in morpho-feedback-20040122.doc in /doc/devs/ by Andrea Chadden:

When selecting a numeric type for attributes (e.g., ordered, unordered), it is
sometimes difficult (even with the helpful examples) to select the appropriate
attribute type and standard unit for some common data types. Examples:
• Positive fractional numbers (0.1…3.12, 3.14..) with no negatives
allowed (as in length measurements).
• Positive integers >= 0, 1,… as in age or organism counts. Which
Standard Unit is appropriate? The closest Standard Unit I could find was ‘mole’.
• Are the numbers 3 and 3.44 both ‘counting numbers’?
Please provide more concrete examples of ‘relative’ vs. ’absolute’ attribute
types. A link to a short technical discussion would be good to have.