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86th Annual Conference On Assessment Administration

Join IAAO for the 86th Annual Conference on Assessment Administration in Denver, Colorado. The annual conference provides educational sessions, networking, special events, and exhibits.

Sunday, August 30, 2020
Wednesday, September 02, 2020
Denver, CO

International Research Symposium
The 2020 IAAO International Research Symposium is set for May 13-15 in Copenhagen, Denmark, and will offer an exploration of the intersection of public policy and mass appraisal standards, guidance, and implementation challenges.
Wednesday, May 13, 2020
Friday, May 15, 2020

Mass Appraisal Modeling and Spatial Analysis in R

This introductory webinar will demonstrate features of the free and open source software R. It will cover the following topics:
- accessing and downloading R to your computer.
- importing, cleaning, and mapping sales data sets
- creating and interpreting basic multiple regression analysis (MRA) models
- validating models on holdout sales data using simple ratio studies
- plotting sales data and model performance on maps
-Links to R reproducible R scripts and real assessment data will be provided to attendees for additional learning reinforcement opportunities.
Wednesday, January 29, 2020
12:00 PM - 2:00 PM Central Standard Time