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This is the first submission of ggtda to CRAN.

Test environments

  • Debian 10 local install, R 4.0.3
  • OS X local install, R 4.0.3
  • Ubuntu 16.04 (Travis CI), R 4.0.0
  • Windows Server 2012 R2 (AppVeyor CI), R 4.0.2
  • win-builder, r-devel

R CMD check results

There were no ERRORs or WARNINGs.

There was 1 NOTE: new package submission to CRAN.

Some checks flagged words in the DESCRIPTION as possible misspellings, but these are correct:

  • "ggplot2": the package to which ggtda is an extension
  • "tidyverse": the collection of packages to which ggplot2 belongs
  • "homology": the mathematical formalism underpinning algebraic topology and thence the concept of persistence
  • "useRs": a stylized term for R users

There was one WARNING:

   Missing or unexported objects:
     ‘simplextree::expand’ ‘simplextree::maximal’

{ggtda} Suggests {simplextree}, but the version on CRAN is incompatible with the package from which it originally spun off, {Mapper} (itself not on CRAN). Instead, the older v0.9.1 remains compatible with {Mapper}. Since TDA workflows may rely both on {Mapper} and on {ggtda}, it will be necessary to ensure that {ggtda} is compatible with {simplextree} v0.9.1 until the incompatibility is resolved. The WARNING arises because the methods simplextree::expand and simplextree::maximal were not implemented in v0.9.1. To prevent them from being called when unavailable, the hidden object .simplextree_version is defined on load (see the file 'ggtda.R') and is queried inside functions to determine how to perform certain operations.

Downstream dependencies

There are no downstream dependencies.