• using R version 4.0.2 (2020-06-22)
• using platform: x86_64-apple-darwin17.0 (64-bit)
• using session charset: UTF-8
• checking for file ‘pso/DESCRIPTION’ ... OK
• this is package ‘pso’ version ‘1.0.3’
• checking package namespace information ... OK
• checking package dependencies ... OK
• checking if this is a source package ... OK
• checking if there is a namespace ... OK
• checking for executable files ... OK
• checking for hidden files and directories ... OK
• checking for portable file names ... OK
• checking for sufficient/correct file permissions ... OK
• checking whether package ‘pso’ can be installed ... [4s/6s] OK
• checking installed package size ... OK
• checking package directory ... OK
• checking DESCRIPTION meta-information ... OK
• checking top-level files ... OK
• checking for left-over files ... OK
• checking index information ... OK
• checking package subdirectories ... OK
• checking R 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 dependencies in R code ... NOTE
  'library' or 'require' call to ‘numDeriv’ in package code.
    Please use :: or requireNamespace() instead.
    See section 'Suggested packages' in the 'Writing R Extensions' manual.
  Package in Depends field not imported from: ‘methods’
    These packages need to be imported from (in the NAMESPACE file)
    for when this namespace is loaded but not attached.
• checking S3 generic/method consistency ... OK
• checking replacement functions ... OK
• checking foreign function calls ... OK
• checking R code for possible problems ... [3s/3s] NOTE
  test.problem : g: no visible global function definition for ‘grad’
  test.problem: no visible global function definition for ‘new’
  psoptim,test.problem-missing-missing-missing-missing: no visible global
    function definition for ‘new’
  show,test.result: no visible global function definition for ‘show’
  show,test.result: no visible global function definition for ‘sd’
  Undefined global functions or variables:
    grad new sd show
  Consider adding
    importFrom("methods", "new", "show")
    importFrom("stats", "sd")
  to your NAMESPACE file (and ensure that your DESCRIPTION Imports field
  contains 'methods').
• checking Rd files ... OK
• checking Rd metadata ... 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 ... [2s/3s] OK
• checking PDF version of manual ... OK
• DONE
  Status: 2 NOTEs