admmad said:Are the graphs of the number of hybridizers over time or are they of the number of hybridizers who registered at least one daylily in each year or ? How are years in which a hybridizer did not register any daylilies handled (gaps in their registrations)?
How were the hybridizers who registeed both tetraploids and diploids handled?
How were, the admittedly, probably quite few, hybridizers who hybridized one ploidy for a few years and then switched to the other ploidy handled?
@admmad, here's a note from
@Dennis616:
"The hybridizer count data is simply a count of distinct hybridizer names associated with the registration of plant with a given ploidy in a given year. If a particular hybridizer registered 1 dip in a given year, they add 1 to the dip count for that year. If a particular hybridizer registered multiple plants of the same ploidy in a given year, they only add 1 to the count of that ploidy for that year. If the same hybridizer registered both dips and tets in a given year, they add 1 to the count of each ploidy for that year. If a particular hybridizer did not register a dip or tet in a given year then they do not add to the relevant counts."
I'll add that
@Dennis616 got me some interesting scape height data. I'm tied up with the holiday for the moment, but will post some more ADS registration data output soon!
Note to those following along:
@admmad's questions were spot on--if you don't know the assumptions made behind your cool graphs, they may still look cool, but they may be less useful to answer your important questions. As I teach my students, the question is at least as important as the data.
Happy Holidays!
