CURM Twenty-fifth Meeting, 3/17/2009

From www.norsemathology.org

Jump to: navigation, search

Contents

Agenda

Announcements

For Thursday:

  • Katie, where will you be?
  • Right now, planning to pick up Grayson at 12:05 at the New Science Center.

We fly at 2:05, arriving in SLC at 4:09, and we'll catch a ride with some folks from BYU to the Provo Marriott Hotel, 101 West 100 North.

New Business

  • KYMAA Meeting, March 27 - 28, 2009 at Kentucky State University in Frankfort, Kentucky.
    • The answer would appear to be two talks, early (8:20) on Saturday morning.
  • Non-linear Regression Primer (includes the best and most useful description of the estimation standard errors, under Hessian)
    • We haven't talked enough about standard errors. Whenever we're doing non-linear regression, we end up with parameter estimates, but in many cases we don't have error estimates. There are approximations available, however....
  • I continue to work on simulate_both_pop.lsp: a simulation including all three populations of cicadas.
    • Upshot: we can get some very interesting dynamics out of incorporating all three populations.

Old Business

Previous Talk

  • We went too long, obviously: how can we best trim out things to get us into shooting range?
  • What went well from your perspectives? What requires more work?
  • Any other feedback?
  • I think that we need to fortify the ending:
    • Let's give credit to those who thought of the one-if-by-male, two-if-by-female rule, simply noting that they mistook sweet spots for the general case. The general rule is indeed one-meal-if-by-male, two-meals-if-by-female.
    • Grayson:
      • I'd like to see a little inset for the cumulatives where you're doing the scaling: this would give them a quick visual clue as to what you're doing. It would be the densities, with the cumulatives rising up over top, and an arrow for the male towards the female.
    • Katie:
      • Have you managed to get the images to include indicators (color, symbol) for the different species of cicada?

Links

Personal tools