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