Package check result: NOTE

Check: CRAN incoming feasibility, Result: NOTE
  Maintainer: ‘Tyson Barrett <t.barrett88@gmail.com>’
  
  Found the following (possibly) invalid URLs:
    URL: https://stackoverflow.com/questions/10600060/how-to-do-cross-join-in-r
      From: inst/doc/datatable-joins.html
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/11782084/reading-in-large-text-files-in-r
      From: man/fread.Rd
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/15170741/how-does-one-do-a-full-join-using-data-table
      From: inst/doc/datatable-joins.html
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/1727772/quickly-reading-very-large-tables-as-dataframes-in-r
      From: man/fread.Rd
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/18969420/perform-a-semi-join-with-data-table
      From: inst/doc/datatable-joins.html
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/20039335/what-is-the-purpose-of-setting-a-key-in-data-table/20057411#20057411
      From: inst/doc/datatable-faq.html
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/20345022/convert-a-data-frame-to-a-data-table-without-copy
      From: man/setDT.Rd
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/22137591/about-gforce-in-data-table-1-9-2
      From: inst/doc/datatable-sd-usage.html
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/258091/when-should-i-use-mmap-for-file-access
      From: man/fread.Rd
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/29658627/conditional-binary-join-and-update-by-reference-using-the-data-table-package
      From: inst/doc/datatable-sd-usage.html
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/31329939/conditional-keyed-join-update-and-update-a-flag-column-for-matches
      From: inst/doc/datatable-sd-usage.html
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/35179911/shift-in-data-table-v1-9-6-is-slow-for-many-groups
      From: NEWS.md
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/415515/how-can-i-read-and-manipulate-csv-file-data-in-c
      From: man/fread.Rd
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/45972/mmap-vs-reading-blocks
      From: man/fread.Rd
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/9061736/faster-than-scan-with-rcpp
      From: man/fread.Rd
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/9352887/strategies-for-reading-in-csv-files-in-pieces
      From: man/fread.Rd
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/9608950/reading-huge-files-using-memory-mapped-files
      From: man/fread.Rd
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/tagged/data.table
      From: README.md
      Status: 403
      Message: Forbidden
    URL: https://stackoverflow.com/questions/tagged/data.table/
      From: man/assign.Rd
      Status: 403
      Message: Forbidden
  
  Size of tarball: 5723318 bytes

Check: compiled code, Result: NOTE
  File ‘data.table/libs/data_table.so’:
    Found non-API calls to R: ‘OBJECT’, ‘SETLENGTH’, ‘SET_GROWABLE_BIT’,
      ‘SET_TRUELENGTH’, ‘TRUELENGTH’
  
  Compiled code should not call non-API entry points in R.
  
  See ‘Writing portable packages’ in the ‘Writing R Extensions’ manual,
  and section ‘Moving into C API compliance’ for issues with the use of
  non-API entry points.

Check: examples, Result: NOTE
  Examples with CPU time > 2.5 times elapsed time
                user system elapsed ratio
  groupingsets 4.817  0.131   1.253 3.949

Changes to worse in reverse depends:

Package: circhelp
Check: tests
New result: ERROR
    Running ‘testthat.R’ [20s/20s]
  Running the tests in ‘tests/testthat.R’ failed.
  Complete output:
    > library(testthat)
    > library(circhelp)
    Loading required package: data.table
    Loading required package: ggplot2
    > library(circular)
    
    Attaching package: 'circular'
    
    The following objects are masked from 'package:stats':
    
        sd, var
    
    > library(BAMBI)
    
    Attaching package: 'BAMBI'
    
    The following object is masked from 'package:circular':
    
        wind
    
    > 
    > test_check("circhelp")
    [1] "Difference between expected and observed correlation is 0.000245"
    [1] "Difference between expected and observed correlation is 0.000045"
    [1] "Difference between expected and observed correlation is -0.000000"
    [ FAIL 1 | WARN 0 | SKIP 0 | PASS 16 ]
    
    ══ Failed tests ════════════════════════════════════════════════════════════════
    ── Failure ('test-functions.R:70:3'): conversion from circular SD to kappa works both ways ──
    abs(test_sd_deg - vm_kappa_to_circ_sd_deg(kappa_from_deg)) is not strictly less than `tolerance`. Difference: 6.61e-05
    
    [ FAIL 1 | WARN 0 | SKIP 0 | PASS 16 ]
    Error: Test failures
    Execution halted