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Ellis Michael Valentiner
Principal Data Scientist & Team Lead
@VirtualFacility
previously
@Groundspeed
,
@Powerley
&
@FarmLogs
Organizer
@AnnArborRUserGroup
2020
Dec 4
COVID-19 Risk by Incidence Rate and Event Size
Nov 28
Michigan County Adjacencies
Nov 27
Using Bayesian Statistics to Identify Michigan COVID-19 Hot Spots
2018
Apr 22
5K Data Analysis
Mar 17
Speed Test Report: February 2018
Feb 10
Speed Test Report: January 2018
2017
Mar 26
Rental Listings Part 2 - Exploratory Data Analysis
Mar 24
Rental Listings Part 1 - Data Import/Processing
Feb 25
Getting Data into R Part 3 - Web APIs
Feb 23
Getting Data into R Part 2 - Databases
Feb 21
Getting Data into R Part 1 - Flat(ish) Files
2016
Oct 28
Docker for R package management
Aug 2
R dependency hell
2015
Nov 27
Stan Puzzle 1
Sep 22
Non-catastrophic error handling in R batch mode
Sep 21
Using RStan to analyze the Old Faithful data
Mar 30
Unexpected behavior getting class-specific variable importance from a randomForest object
