| abbreviate | Abbreviate Strings |
| agrep | Approximate String Matching (Fuzzy Matching) |
| all | Are All Values True? |
| all.equal | Test if Two Objects are (Nearly) Equal |
| allnames | Find All Names in an Expression |
| any | Are Some Values True? |
| aperm | Array Transposition |
| append | Vector Merging |
| apply | Apply Functions Over Array Margins |
| args | Argument List of a Function |
| Arithmetic | Arithmetic Operators |
| array | Multi-way Arrays |
| as.data.frame | Coerce to a Data Frame |
| as.Date | Date Conversion Functions to and from Character |
| as.environment | Coerce to an Environment Object |
| as.function | Convert Object to Function |
| AsIs | Inhibit Interpretation/Conversion of Objects |
| as.POSIXlt | Date-time Conversion Functions |
| assign | Assign a Value to a Name |
| assignOps | Assignment Operators |
| attach | Attach Set of R Objects to Search Path |
| attr | Object Attributes |
| attributes | Object Attribute Lists |
| autoload | On-demand Loading of Packages |
| backsolve | Solve an Upper or Lower Triangular System |
| base-defunct | Defunct Functions in Package 'base' |
| base-deprecated | Deprecated Functions in Package 'base' |
| base-internal | Internal Objects in Package 'base' |
| basename | Manipulate File Paths |
| base-package | The R Base Package |
| Bessel | Bessel Functions |
| bincode | Bin a Numeric Vector |
| bindenv | Binding and Environment Locking, Active Bindings |
| bitwise | Bitwise Logical Operations |
| body | Access to and Manipulation of the Body of a Function |
| bquote | Partial substitution in expressions |
| browser | Environment Browser |
| browserText | Functions to Retrieve Values Supplied by Calls to the Browser |
| builtins | Returns the Names of All Built-in Objects |
| by | Apply a Function to a Data Frame Split by Factors |
| c | Combine Values into a Vector or List |
| call | Function Calls |
| callCC | Call With Current Continuation |
| CallExternal | Modern Interfaces to C/C++ code |
| capabilities | Report Capabilities of this Build of R |
| cat | Concatenate and Print |
| cbind | Combine R Objects by Rows or Columns |
| character | Character Vectors |
| char.expand | Expand a String with Respect to a Target Table |
| charmatch | Partial String Matching |
| chartr | Character Translation and Casefolding |
| chkDots | Warn About Extraneous Arguments in the "..." of Its Caller |
| chol | The Choleski Decomposition |
| chol2inv | Inverse from Choleski (or QR) Decomposition |
| class | Object Classes |
| col | Column Indexes |
| colnames | Row and Column Names |
| Colon | Colon Operator |
| colSums | Form Row and Column Sums and Means |
| commandArgs | Extract Command Line Arguments |
| comment | Query or Set a '"comment"' Attribute |
| Comparison | Relational Operators |
| complex | Complex Numbers and Basic Functionality |
| conditions | Condition Handling and Recovery |
| conflicts | Search for Masked Objects on the Search Path |
| connections | Functions to Manipulate Connections (Files, URLs, ...) |
| Constants | Built-in Constants |
| contributors | R Project Contributors |
| Control | Control Flow |
| copyright | Copyrights of Files Used to Build R |
| crossprod | Matrix Crossproduct |
| Cstack_info | Report Information on C Stack Size and Usage |
| cumsum | Cumulative Sums, Products, and Extremes |
| curlGetHeaders | Retrieve Headers from URLs |
| cut | Convert Numeric to Factor |
| cut.POSIXt | Convert a Date or Date-Time Object to a Factor |
| data.class | Object Classes |
| data.frame | Data Frames |
| dataframeHelpers | Data Frame Auxiliary Functions |
| data.matrix | Convert a Data Frame to a Numeric Matrix |
| date | System Date and Time |
| Dates | Date Class |
| DateTimeClasses | Date-Time Classes |
| dcf | Read and Write Data in DCF Format |
| debug | Debug a Function |
| Defunct | Marking Objects as Defunct |
| delayedAssign | Delay Evaluation |
| deparse | Expression Deparsing |
| deparseOpts | Options for Expression Deparsing |
| Deprecated | Marking Objects as Deprecated |
| det | Calculate the Determinant of a Matrix |
| detach | Detach Objects from the Search Path |
| dev | Lists of Open/Active Graphics Devices |
| diag | Matrix Diagonals |
| diff | Lagged Differences |
| difftime | Time Intervals |
| dim | Dimensions of an Object |
| dimnames | Dimnames of an Object |
| do.call | Execute a Function Call |
| dontCheck | Identity Function to Suppress Checking |
| double | Double-Precision Vectors |
| dput | Write an Object to a File or Recreate it |
| drop | Drop Redundant Extent Information |
| droplevels | droplevels |
| dump | Text Representations of R Objects |
| duplicated | Determine Duplicate Elements |
| dynload | Foreign Function Interface |
| eapply | Apply a Function Over Values in an Environment |
| eigen | Spectral Decomposition of a Matrix |
| encodeString | Encode Character Vector as for Printing |
| Encoding | Read or Set the Declared Encodings for a Character Vector |
| environment | Environment Access |
| EnvVar | Environment Variables |
| eval | Evaluate an (Unevaluated) Expression |
| exists | Is an Object Defined? |
| expand.grid | Create a Data Frame from All Combinations of Factors |
| expression | Unevaluated Expressions |
| Extract | Extract or Replace Parts of an Object |
| Extract.data.frame | Extract or Replace Parts of a Data Frame |
| Extract.factor | Extract or Replace Parts of a Factor |
| Extremes | Maxima and Minima |
| extSoftVersion | Report Versions of Third-Party Software |
| factor | Factors |
| file.access | Ascertain File Accessibility |
| file.choose | Choose a File Interactively |
| file.info | Extract File Information |
| file.path | Construct Path to File |
| files | File Manipulation |
| files2 | Manipulaton of Directories and File Permissions |
| file.show | Display One or More Files |
| findInterval | Find Interval Numbers or Indices |
| find.package | Find Packages |
| force | Force Evaluation of an Argument |
| forceAndCall | Call a function with Some Arguments Forced |
| Foreign | Foreign Function Interface |
| Foreign-internal | Internal Versions of the Foreign Function Interface |
| formals | Access to and Manipulation of the Formal Arguments |
| format | Encode in a Common Format |
| formatc | Formatting Using C-style Formats |
| formatDL | Format Description Lists |
| format.info | format(.) Information |
| format.pval | Format P Values |
| function | Function Definition |
| funprog | Common Higher-Order Functions in Functional Programming... |
| gc | Garbage Collection |
| gc.time | Report Time Spent in Garbage Collection |
| gctorture | Torture Garbage Collector |
| get | Return the Value of a Named Object |
| getCallingDLL | Compute DLL for Native Interface Call |
| getDLLRegisteredRoutines | Reflectance Information for C/Fortran routines in a DLL |
| getLoadedDLLs | Get DLLs Loaded in Current Session |
| getNativeSymbolInfo | Obtain a Description of one or more Native (C/Fortran)... |
| gettext | Translate Text Messages |
| getwd | Get or Set Working Directory |
| gl | Generate Factor Levels |
| grep | Pattern Matching and Replacement |
| grepRaw | Pattern Matching for Raw Vectors |
| groupGeneric | S3 Group Generic Functions |
| gzcon | (De)compress I/O Through Connections |
| hexmode | Display Numbers in Hexadecimal |
| Hyperbolic | Hyperbolic Functions |
| iconv | Convert Character Vector between Encodings |
| icuSetCollate | Setup Collation by ICU |
| identical | Test Objects for Exact Equality |
| identity | Identity Function |
| ifelse | Conditional Element Selection |
| integer | Integer Vectors |
| interaction | Compute Factor Interactions |
| interactive | Is R Running Interactively? |
| Internal | Call an Internal Function |
| InternalMethods | Internal Generic Functions |
| invisible | Change the Print Mode to Invisible |
| is.finite | Finite, Infinite and NaN Numbers |
| is.function | Is an Object of Type (Primitive) Function? |
| is.language | Is an Object a Language Object? |
| is.object | Is an Object 'internally classed'? |
| ISOdatetime | Date-time Conversion Functions from Numeric Representations |
| isR | Are we using R, rather than S? |
| is.recursive | Is an Object Atomic or Recursive? |
| isS4 | Test for an S4 object |
| is.single | Is an Object of Single Precision Type? |
| isSymmetric | Test if a Matrix or other Object is Symmetric |
| is.unsorted | Test if an Object is Not Sorted |
| jitter | 'Jitter' (Add Noise) to Numbers |
| kappa | Compute or Estimate the Condition Number of a Matrix |
| kronecker | Kronecker Products on Arrays |
| l10n_info | Localization Information |
| labels | Find Labels from Object |
| lapply | Apply a Function over a List or Vector |
| Last.value | Value of Last Evaluated Expression |
| La_version | LAPACK Version |
| lazyload | Lazy Load a Database of R Objects |
| length | Length of an Object |
| lengths | Lengths of List or Vector Elements |
| levels | Levels Attributes |
| libcurlVersion | Report Version of libcurl |
| libPaths | Search Paths for Packages |
| library | Loading/Attaching and Listing of Packages |
| library.dynam | Loading DLLs from Packages |
| license | The R License Terms |
| list | Lists - Generic and Dotted Pairs |
| list2env | From A List, Build or Add To an Environment |
| list.files | List the Files in a Directory/Folder |
| load | Reload Saved Datasets |
| locales | Query or Set Aspects of the Locale |
| Log | Logarithms and Exponentials |
| Logic | Logical Operators |
| logical | Logical Vectors |
| LongVectors | Long Vectors |
| lower.tri | Lower and Upper Triangular Part of a Matrix |
| ls | List Objects |
| make.names | Make Syntactically Valid Names |
| make.unique | Make Character Strings Unique |
| mapply | Apply a Function to Multiple List or Vector Arguments |
| margin.table | Compute table margin |
| match | Value Matching |
| match.arg | Argument Verification Using Partial Matching |
| match.call | Argument Matching |
| match.fun | Extract a Function Specified by Name |
| MathFun | Miscellaneous Mathematical Functions |
| matmult | Matrix Multiplication |
| mat.or.vec | Create a Matrix or a Vector |
| matrix | Matrices |
| maxCol | Find Maximum Position in Matrix |
| mean | Arithmetic Mean |
| memCompress | In-memory Compression and Decompression |
| Memory | Memory Available for Data Storage |
| Memory-limits | Memory Limits in R |
| memory.profile | Profile the Usage of Cons Cells |
| merge | Merge Two Data Frames |
| message | Diagnostic Messages |
| missing | Does a Formal Argument have a Value? |
| mode | The (Storage) Mode of an Object |
| NA | 'Not Available' / Missing Values |
| name | Names and Symbols |
| names | The Names of an Object |
| nargs | The Number of Arguments to a Function |
| nchar | Count the Number of Characters (or Bytes or Width) |
| nlevels | The Number of Levels of a Factor |
| noquote | Class for 'no quote' Printing of Character Strings |
| norm | Compute the Norm of a Matrix |
| normalizePath | Express File Paths in Canonical Form |
| notyet | Not Yet Implemented Functions and Unused Arguments |
| nrow | The Number of Rows/Columns of an Array |
| ns-dblcolon | Double Colon and Triple Colon Operators |
| ns-hooks | Hooks for Namespace Events |
| ns-internal | Namespace Internals |
| ns-load | Loading and Unloading Name Spaces |
| ns-reflect | Namespace Reflection Support |
| ns-topenv | Top Level Environment |
| NULL | The Null Object |
| numeric | Numeric Vectors |
| NumericConstants | Numeric Constants |
| numeric_version | Numeric Versions |
| octmode | Display Numbers in Octal |
| on.exit | Function Exit Code |
| Ops.Date | Operators on the Date Class |
| options | Options Settings |
| order | Ordering Permutation |
| outer | Outer Product of Arrays |
| Paren | Parentheses and Braces |
| parse | Parse Expressions |
| paste | Concatenate Strings |
| path.expand | Expand File Paths |
| pcre_config | Report Configuration Options for PCRE |
| Platform | Platform Specific Variables |
| pmatch | Partial String Matching |
| polyroot | Find Zeros of a Real or Complex Polynomial |
| pos.to.env | Convert Positions in the Search Path to Environments |
| pretty | Pretty Breakpoints |
| Primitive | Look Up a Primitive Function |
| print | Print Values |
| print.dataframe | Printing Data Frames |
| print.default | Default Printing |
| prmatrix | Print Matrices, Old-style |
| proc.time | Running Time of R |
| prod | Product of Vector Elements |
| prop.table | Express Table Entries as Fraction of Marginal Table |
| pushBack | Push Text Back on to a Connection |
| qr | The QR Decomposition of a Matrix |
| qraux | Reconstruct the Q, R, or X Matrices from a QR Object |
| quit | Terminate an R Session |
| Quotes | Quotes |
| Random | Random Number Generation |
| Random-user | User-supplied Random Number Generation |
| range | Range of Values |
| rank | Sample Ranks |
| rapply | Recursively Apply a Function to a List |
| raw | Raw Vectors |
| rawConnection | Raw Connections |
| rawConversion | Convert to or from Raw Vectors |
| RdUtils | Utilities for Processing Rd Files |
| readBin | Transfer Binary Data To and From Connections |
| readChar | Transfer Character Strings To and From Connections |
| readline | Read a Line from the Terminal |
| readLines | Read Text Lines from a Connection |
| readRDS | Serialization Interface for Single Objects |
| readRenviron | Set Environment Variables from a File |
| Recall | Recursive Calling |
| regex | Regular Expressions as used in R |
| reg.finalizer | Finalization of Objects |
| regmatches | Extract or Replace Matched Substrings |
| rep | Replicate Elements of Vectors and Lists |
| replace | Replace Values in a Vector |
| Reserved | Reserved Words in R |
| rev | Reverse Elements |
| Rhome | Return the R Home Directory |
| rle | Run Length Encoding |
| rm | Remove Objects from a Specified Environment |
| Round | Rounding of Numbers |
| round.POSIXt | Round / Truncate Data-Time Objects |
| row | Row Indexes |
| row.names | Get and Set Row Names for Data Frames |
| rowsum | Give Column Sums of a Matrix or Data Frame, Based on a... |
| sample | Random Samples and Permutations |
| save | Save R Objects |
| scale | Scaling and Centering of Matrix-like Objects |
| scan | Read Data Values |
| search | Give Search Path for R Objects |
| seek | Functions to Reposition Connections |
| seq | Sequence Generation |
| seq.Date | Generate Regular Sequences of Dates |
| seq.POSIXt | Generate Regular Sequences of Times |
| sequence | Create A Vector of Sequences |
| serialize | Simple Serialization Interface |
| sets | Set Operations |
| setTimeLimit | Set CPU and/or Elapsed Time Limits |
| showConnections | Display Connections |
| shQuote | Quote Strings for Use in OS Shells |
| sign | Sign Function |
| sink | Send R Output to a File |
| slice.index | Slice Indexes in an Array |
| slotOp | Extract or Replace A Slot |
| socketSelect | Wait on Socket Connections |
| solve | Solve a System of Equations |
| sort | Sorting or Ordering Vectors |
| source | Read R Code from a File or a Connection |
| Special | Special Functions of Mathematics |
| split | Divide into Groups and Reassemble |
| sprintf | Use C-style String Formatting Commands |
| sQuote | Quote Text |
| srcfile | References to source files |
| standardGeneric | Formal Method System - Dispatching S4 Methods |
| Startup | Initialization at Start of an R Session |
| stop | Stop Function Execution |
| stopifnot | Ensure the Truth of R Expressions |
| strptime | Date-time Conversion Functions to and from Character |
| strrep | Repeat the Elements of a Character Vector |
| strsplit | Split the Elements of a Character Vector |
| strtoi | Convert Strings to Integers |
| strtrim | Trim Character Strings to Specified Display Widths |
| structure | Attribute Specification |
| strwrap | Wrap Character Strings to Format Paragraphs |
| subset | Subsetting Vectors, Matrices and Data Frames |
| substitute | Substituting and Quoting Expressions |
| substr | Substrings of a Character Vector |
| sum | Sum of Vector Elements |
| summary | Object Summaries |
| svd | Singular Value Decomposition of a Matrix |
| sweep | Sweep out Array Summaries |
| switch | Select One of a List of Alternatives |
| Syntax | Operator Syntax and Precedence |
| Sys.getenv | Get Environment Variables |
| Sys.getpid | Get the Process ID of the R Session |
| Sys.glob | Wildcard Expansion on File Paths |
| Sys.info | Extract System and User Information |
| Sys.localeconv | Find Details of the Numerical and Monetary Representations in... |
| sys.parent | Functions to Access the Function Call Stack |
| Sys.readlink | Read File Symbolic Links |
| Sys.setenv | Set or Unset Environment Variables |
| Sys.setFileTime | Set File Time |
| Sys.sleep | Suspend Execution for a Time Interval |
| sys.source | Parse and Evaluate Expressions from a File |
| system | Invoke a System Command |
| system2 | Invoke a System Command |
| system.file | Find Names of R System Files |
| system.time | CPU Time Used |
| Sys.time | Get Current Date and Time |
| Sys.which | Find Full Paths to Executables |
| t | Matrix Transpose |
| table | Cross Tabulation and Table Creation |
| tabulate | Tabulation for Vectors |
| tapply | Apply a Function Over a Ragged Array |
| taskCallback | Add or Remove a Top-Level Task Callback |
| taskCallbackManager | Create an R-level Task Callback Manager |
| taskCallbackNames | Query the Names of the Current Internal Top-Level Task... |
| tempfile | Create Names for Temporary Files |
| textconnections | Text Connections |
| tilde | Tilde Operator |
| timezones | Time Zones |
| toString | Convert an R Object to a Character String |
| trace | Interactive Tracing and Debugging of Calls to a Function or... |
| traceback | Print Call Stacks |
| tracemem | Trace Copying of Objects |
| transform | Transform an Object, for Example a Data Frame |
| Trig | Trigonometric Functions |
| trimws | Remove Leading/Trailing Whitespace |
| try | Try an Expression Allowing Error Recovery |
| typeof | The Type of an Object |
| unique | Extract Unique Elements |
| unix/Signals | Interrupting Execution of R |
| unlink | Delete Files and Directories |
| unlist | Flatten Lists |
| unname | Remove 'names' or 'dimnames' |
| UseMethod | Class Methods |
| userhooks | Functions to Get and Set Hooks for Load, Attach, Detach and... |
| utf8Conversion | Convert Integer Vectors to or from UTF-8-encoded Character... |
| validUTF8 | Check if a Character Vector is Validly Encoded |
| vector | Vectors |
| Vectorize | Vectorize a Scalar Function |
| Version | Version Information |
| warning | Warning Messages |
| warnings | Print Warning Messages |
| weekday.POSIXt | Extract Parts of a POSIXt or Date Object |
| which | Which indices are TRUE? |
| which.min | Where is the Min() or Max() or first TRUE or FALSE ? |
| windows/shell | Invoke a System Command, using a Shell |
| windows/shell.exec | Open a File or URL using Windows File Associations |
| with | Evaluate an Expression in a Data Environment |
| withVisible | Return both a value and its visibility |
| write | Write Data to a File |
| writeLines | Write Lines to a Connection |
| xtfrm | Auxiliary Function for Sorting and Ranking |
| zapsmall | Rounding of Numbers |
| zMachine | Numerical Characteristics of the Machine |
| zpackages | Listing of Packages |
| zScript | Scripting Language Interface |
| zutils | Miscellaneous Internal/Programming Utilities |
