隠された名前を見る

baseだけで100個ほどある。

> ls(.BaseNamespaceEnv, pattern="^\\.", all.names=T)

  [1] "..getNamespace"            ".__H__.cbind"             

  [3] ".__H__.rbind"              ".__S3MethodsTable__."     

  [5] ".amatch_bounds"            ".amatch_costs"            

  [7] ".ArgsEnv"                  ".AutoloadEnv"             

  [9] ".BaseNamespaceEnv"         ".bincode"                 

 [11] ".C"                        ".C_R_addTaskCallback"     

 [13] ".C_R_getTaskCallbackNames" ".C_R_removeTaskCallback"  

 [15] ".cache_class"              ".Call"                    

 [17] ".Call.graphics"            ".colMeans"                

 [19] ".colSums"                  ".decode_numeric_version"  

 [21] ".Defunct"                  ".deparseOpts"             

 [23] ".Deprecated"               ".detach"                  

 [25] ".Device"                   ".Devices"                 

 [27] ".difftime"                 ".doTrace"                 

 [29] ".dynLibs"                  ".encode_numeric_version"  

 [31] ".expand_R_libs_env_var"    ".External"                

 [33] ".External.graphics"        ".External2"               

 [35] ".F_dchdc"                  ".F_dqrcf"                 

 [37] ".F_dqrdc2"                 ".F_dqrqty"                

 [39] ".F_dqrqy"                  ".F_dqrrsd"                

 [41] ".F_dqrxb"                  ".F_dtrco"                 

 [43] ".find.package"             ".First.sys"               

 [45] ".format.zeros"             ".Fortran"                 

 [47] ".GenericArgsEnv"           ".getNamespace"            

 [49] ".getNamespaceInfo"         ".getRequiredPackages"     

 [51] ".getRequiredPackages2"     ".GlobalEnv"               

 [53] ".gt"                       ".gtn"                     

 [55] ".handleSimpleError"        ".Internal"                

 [57] ".isMethodsDispatchOn"      ".isOpen"                  

 [59] ".kappa_tri"                ".knownS3Generics"         

 [61] ".kronecker"                ".Last.value"              

 [63] ".leap.seconds"             ".libPaths"                

 [65] ".Library"                  ".Library.site"            

 [67] ".Machine"                  ".make_numeric_version"    

 [69] ".makeMessage"              ".mapply"                  

 [71] ".maskedMsg"                ".mergeExportMethods"      

 [73] ".mergeImportMethods"       ".methodsNamespace"        

 [75] ".noGenerics"               ".NotYetImplemented"       

 [77] ".NotYetUsed"               ".Options"                 

 [79] ".OptRequireMethods"        ".packages"                

 [81] ".packageStartupMessage"    ".path.package"            

 [83] ".Platform"                 ".popath"                  

 [85] ".POSIXct"                  ".POSIXlt"                 

 [87] ".Primitive"                ".primTrace"               

 [89] ".primUntrace"              ".readRDS"                 

 [91] ".row_names_info"           ".rowMeans"                

 [93] ".rowSums"                  ".S3PrimitiveGenerics"     

 [95] ".saveRDS"                  ".Script"                  

 [97] ".set_row_names"            ".signalSimpleWarning"     

 [99] ".standard_regexps"         ".subset"                  

[101] ".subset2"                  ".TAOCP1997init"           

[103] ".Traceback"                ".userHooksEnv"            

>