AssessR is a software package for R developed by the Cook County Assessor’s (CCAO) Data Science Department. This package is used in the CCAO’s custom-built Computer Assisted Mass Appraisal system. The codebase for the CCAO’s CAMA system uses a wide range of functions regularly, and packaging these functions streamlines and standardizes their use. The CCAO is publishing this package to make it available to assessors, reporters, and citizens everywhere.
For assessors, we believe that this package will reduce the complexity of calculating ratio statistics and detecting sales chasing. We also believe that reporters, taxpayers, and members of academia will find this package helpful in monitoring the performance of local assessors and conducting research.
For detailed documentation on included functions and data, visit the full reference list.
For examples of specific tasks you can complete with assessr
functions, see the vignettes
page.
You can install the released version of assessr directly from GitHub
with one of the following commands:
# Using remotes
remotes::install_github("ccao-data/assessr")
# Using renv
renv::install("ccao-data/assessr")
# Using pak
pak::pak("ccao-data/assessr")
# Append the @ symbol for a specific version
remotes::install_github("ccao-data/[email protected]")Once it is installed, you can use it just like any other package. Simply
call library(assessr) at the beginning of your script.