Type: Package
Package: ptvalue
Title: Working with Precision Teaching Values
Version: 0.2.0
Authors@R: 
    person("Alexandre", "Gellen-Kamel", , "kamel.ag@outlook.com", role = c("aut", "cre", "cph"),
           comment = c(ORCID = "0000-0002-0382-2478"))
Description: An implementation of an S3 class based on a double vector for storing and displaying precision teaching measures, representing a growing or a decaying (multiplicative) change between two frequencies. The main format method allows researchers to display measures (including data.frame) that respect the established conventions in the precision teaching community (i.e., prefixed multiplication or division symbol, displayed number <= 1). Basic multiplication and division methods are allowed and other useful functions are provided for creating, converting or inverting precision teaching measures. For more details, see Pennypacker, Gutierrez and Lindsley (2003, ISBN: 1-881317-13-7).
License: MIT + file LICENSE
URL: https://github.com/agkamel/ptvalue
BugReports: https://github.com/agkamel/ptvalue/issues
Imports: rlang, vctrs
Suggests: testthat (>= 3.0.0)
Config/testthat/edition: 3
Encoding: UTF-8
RoxygenNote: 7.3.3
NeedsCompilation: no
Packaged: 2025-10-31 17:56:51 UTC; alexn
Author: Alexandre Gellen-Kamel [aut, cre, cph] (ORCID:
    <https://orcid.org/0000-0002-0382-2478>)
Maintainer: Alexandre Gellen-Kamel <kamel.ag@outlook.com>
Repository: CRAN
Date/Publication: 2025-10-31 18:10:02 UTC
Built: R 4.6.0; ; 2026-04-27 19:28:00 UTC; unix
