* using log directory 'd:/RCompile/CRANincoming/R-devel/xtdml.Rcheck'
* using R Under development (unstable) (2025-08-26 r88710 ucrt)
* using platform: x86_64-w64-mingw32
* R was compiled by
    gcc.exe (GCC) 14.2.0
    GNU Fortran (GCC) 14.2.0
* running under: Windows Server 2022 x64 (build 20348)
* using session charset: UTF-8
* checking for file 'xtdml/DESCRIPTION' ... OK
* checking extension type ... Package
* this is package 'xtdml' version '0.1.4'
* package encoding: UTF-8
* checking CRAN incoming feasibility ... NOTE
Maintainer: 'Annalivia Polselli <apolselli.econ@gmail.com>'

New submission

Possibly misspelled words in DESCRIPTION:
  DoubleML (12:493)
  PLPR (12:68)
  Polselli (12:384)
  al (12:512)
  et (12:509)
  xtdml (12:15, 12:209, 12:445)

Package has a VignetteBuilder field but no prebuilt vignette index.

Found the following (possibly) invalid URLs:
  URL: https://mlr3book.mlr-org.com/optimization.html#tuning
    From: man/xtdml.Rd
          man/xtdml_plr.Rd
    Status: 404
    Message: Not Found

Found the following (possibly) invalid DOIs:
  DOI: https://doi.org/10.1093/ectj/utaf011
    From: DESCRIPTION
    Status: 404
    Message: Not Found
  DOI: https://doi.org/10.18637/jss.v108.i03
    From: DESCRIPTION
    Status: 404
    Message: Not Found

The Description field should start with a capital letter.
The Description field contains
  <doi:https://doi.org/10.1093/ectj/utaf011>. `xtdml` is built on the
  <doi:https://doi.org/10.18637/jss.v108.i03> using the 'mlr3' ecosystem.
Please enclose URLs in angle brackets (<...>).
The Description field contains
  <doi:https://doi.org/10.1093/ectj/utaf011>. `xtdml` is built on the
  <doi:https://doi.org/10.18637/jss.v108.i03> using the 'mlr3' ecosystem.
Please write DOIs as <doi:prefix/suffix>.
* checking package namespace information ... OK
* checking package dependencies ... INFO
Vignette dependency required without any vignettes: 'knitr'
* checking if this is a source package ... OK
* checking if there is a namespace ... OK
* checking for hidden files and directories ... OK
* checking for portable file names ... OK
* checking whether package 'xtdml' can be installed ... OK
* checking installed package size ... OK
* checking package directory ... OK
* checking for future file timestamps ... OK
* checking DESCRIPTION meta-information ... NOTE
Author field differs from that derived from Authors@R
  Author:    'Annalivia Polselli [aut, cre],'
  Authors@R: 'Annalivia Polselli [aut, cre] (ORCID: <https://orcid.org/0000-0003-0918-3766>)'

* checking top-level files ... OK
* checking for left-over files ... OK
* checking index information ... OK
* checking package subdirectories ... OK
* checking code files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... OK
* checking whether the package can be loaded with stated dependencies ... OK
* checking whether the package can be unloaded cleanly ... OK
* checking whether the namespace can be loaded with stated dependencies ... OK
* checking whether the namespace can be unloaded cleanly ... OK
* checking loading without being on the library search path ... OK
* checking use of S3 registration ... OK
* checking dependencies in R code ... OK
* checking S3 generic/method consistency ... OK
* checking replacement functions ... OK
* checking foreign function calls ... OK
* checking R code for possible problems ... OK
* checking Rd files ... OK
* checking Rd metadata ... OK
* checking Rd line widths ... OK
* checking Rd cross-references ... OK
* checking for missing documentation entries ... OK
* checking for code/documentation mismatches ... OK
* checking Rd \usage sections ... OK
* checking Rd contents ... OK
* checking for unstated dependencies in examples ... OK
* checking examples ... [11s] OK
* checking PDF version of manual ... [11s] WARNING
LaTeX errors when creating PDF version.
This typically indicates Rd problems.
LaTeX errors found:
! Double subscript.
<argument> \alpha _i = \rho A_i _
                                 i + \sqrt {1-\rho ^2} B_i
l.52 ...a_i = \rho A_i _i + \sqrt{1-\rho^2} B_i}{}
                                                   with
* checking PDF version of manual without index ... ERROR
* checking HTML version of manual ... NOTE
Found the following math rendering problems:
make_plpr_data.Rd:41: Double subscript in ...a_i = \rho A_i _i + \sqrt{1-\rh...
* DONE
Status: 1 ERROR, 1 WARNING, 3 NOTEs