George Dell's Valuemetrics Appraiser Education

 

 

 

 Stats, Graphs, and Data Science2  

Online Starting April 19, 2025

"The class was by far the best I have ever had in 31 years of appraising."

John W. - St. Matthews, SC
Certified General Appraiser

Stats, Graphs, and Data Science2

Next Course Online in Zoom

Hosted by The Asset Analysts Report (c)and
The Community of Asset Analyst

Class is held online over four sessions, 3.5 hours per session.

 Stats, Graphs, and Data Science 2, is for returning students of Valuemetrics Stats, Graphs, and Data Science 1, and continues on the foundations learned in SGDS1. Building on those foundations, students learn in depth, breadth, and detail.  We continue examination of the theory, concepts, and practice of data science as applied to asset analytics.  The learning follows the development sequence of valuation and risk analytics.  Starting from the problem identification (scope of work) in measurable terms, we proceed to:

  • Identify the overall project data frame;
  • Define the CMS© (Competitive Market Segment), the ideal data set;
  • Resolve the bias-variance tradeoff to optimize accuracy and precision of results;
  • Perform necessary data wrangling (analogical to traditional confirmation/verification)
    • Portray data visually
    • Reduce to the CMS©
    • Detect quantify missing/needed predictor variables
    • Create new calculated fields
    • Transform functional relationships (e.g., linear to logarithmic)
    • Create Transformed data levels
    • Identify and handle outliers
    • Recognize needed predictive confirmation/verification

This class is experienced in R, RStudio, and R packages, including ggplot2 and tidyverse.  A comparison and integration of spreadsheet software is provided for workflow efficiency.  

Specific analytics include non-linear price indexing, seam regression, introduction to GIS in R, Data selection algorithms (particularly hierarchical cluster analysis), sources of help for R.  Also resolution of conflicts in USPAP, AI-SVP, IVS, and EBV© (Evidence Based Valuation) practice, and reporting in a data-stream delivery through dashboard views.

In addition to George Dell, SRA, MAI, ASA, CRE, as your instructor, other Instructors for this class include Bruce Hahn, CCIM, MAI, SRA,  John Fariss, MNAA, and Charles Abromaitis AACI, P. App.

Bruce Hahn is an independent fee appraiser, applying R analytics to residential and other assignments from Reno, NV.

John Fariss is an independent fee appraiser, applying R analytics to residential assignments in Bakersfield, CA 

Charlie Abromaitis  is the pioneer in the practical application of statistical/analytics software for valuation, from London, Ontario, Canada

All instructors are leading members of the Community of Asset Analysts©


Included:

  • Hands-on Instruction
  • Open-source spreadsheet and data analysis software
  • State CE Certification for many states
  • Student attendance certificate.

Bonuses: 

Reference Book, Handouts, R script. 

 

SGDS2

You must be an alumni of SGDS1 to take this class.

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