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ngths 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 list2df create data frame from list 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 marginsums compute table margins 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 memlimits query and set heap size limits 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 r expressions paste concatenate strings path expand expand file paths pcre_config report configuration options for pcre pipeop forward pipe operator platform platform specific variables plot generic x y plotting 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 proportions 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 bit packed 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 s3method register s3 methods 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 a connection or expressions 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 and code standardgeneric formal method system dispatching s4 methods startswith does string start or end with another string 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 get and 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 utf8filepaths file paths not in the native encoding 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 zapping small ones to zero zmachine numerical characteristics of the machine zpackages listing of packages zscript scripting language interface zutils miscellaneous internal programming utilities compiler compile byte code compiler datasets ability cov ability and intelligence tests airmiles passenger miles on commercial us airlines 1937 1960 airpassengers monthly airline passenger numbers 1949 1960 airquality new york air quality measurements anscombe anscombe s quartet of identical simple linear regressions attenu the joyner boore attenuation data attitude the chatterjee price attitude data austres quarterly time series of the number of australian residents beavers body temperature series of two beavers bjsales sales data with leading indicator bod biochemical oxygen demand cars speed and stopping distances of cars chickweight weight versus age of chicks on different diets chickwts chicken weights by feed type co2 mauna loa atmospheric co2 concentration crimtab student s 3000 criminals data datasets package the r datasets package discoveries yearly numbers of important discoveries dnase elisa assay of dnase esoph smoking alcohol and o esophageal cancer euro conversion rates of euro currencies eurodist distances between european cities and between us cities eustockmarkets daily closing prices of major european stock indices faithful old faithful geyser data formaldehyde determination of formaldehyde freeny freeny s revenue data haireyecolor hair and eye color of statistics students harman23 cor harman example 2 3 harman74 cor harman example 7 4 indometh pharmacokinetics of indomethacin infert infertility after spontaneous and induced abortion insectsprays effectiveness of insect sprays iris edgar anderson s iris data islands areas of the world s major landmasses johnsonjohnson quarterly earnings per johnson johnson share lakehuron level of lake huron 1875 1972 lh luteinizing hormone in blood samples lifecyclesavings intercountry life cycle savings data loblolly growth of loblolly pine trees longley longley s economic regression data lynx annual canadian lynx trappings 1821 1934 morley michelson speed of light data mtcars motor trend car road tests nhtemp average yearly temperatures in new haven nile flow of the river nile nottem average monthly temperatures at nottingham 1920 1939 npk classical n p k factorial experiment occupationalstatus occupational status of fathers and their sons orange growth of orange trees orchardsprays potency of orchard sprays plantgrowth results from an experiment on plant growth precip annual precipitation in us cities presidents quarterly approval ratings of us presidents pressure vapor pressure of mercury as a function of temperature puromycin reaction velocity of an enzymatic reaction quakes locations of earthquakes off fiji randu random numbers from congruential generator randu rivers lengths of major north american rivers rock measurements on petroleum rock samples sleep student s sleep data stackloss brownlee s stack loss plant data state us state facts and figures sunspot month monthly sunspot data from 1749 to present sunspots monthly sunspot numbers 1749 1983 sunspot year yearly sunspot data 1700 1988 swiss swiss fertility and socioeconomic indicators 1888 data theoph pharmacokinetics of theophylline titanic survival of passengers on the titanic toothgrowth the effect of vitamin c on tooth growth in guinea pigs treering yearly treering data 6000 1979 trees diameter height and volume for black cherry trees ucbadmissions student admissions at uc berkeley ukdriverdeaths road casualties in great britain 1969 84 ukgas uk quarterly gas consumption uklungdeaths monthly deaths from lung diseases in the uk usaccdeaths accidental deaths in the us 1973 1978 usarrests violent crime rates by us state usjudgeratings lawyers ratings of state judges in the us superior court uspersonalexpenditure personal expenditure data uspop populations recorded by the us census vadeaths death rates in virginia 1940 volcano topographic information on auckland s maunga whau volcano warpbreaks the number of breaks in yarn during weaving women average heights and weights for american women worldphones the world s telephones wwwusage internet usage per minute zco2 carbon dioxide uptake in grass plants graphics abline add straight lines to a plot arrows add arrows to a plot assocplot association plots axis add an axis to a plot axis posixct date and date time plotting functions axticks compute axis tickmark locations barplot bar plots box draw a box around a plot boxplot box plots boxplot matrix draw a boxplot for each column row of a matrix bxp draw box plots from summaries cdplot conditional density plots clip set clipping region contour display contours convertxy convert between graphics coordinate systems coplot conditioning plots curve draw function plots dotchart cleveland s dot plots filled contour level contour plots fourfoldplot fourfold plots frame create start a new plot frame graphics defunct defunct functions in package graphics graphics package the r graphics package grid add grid to a plot hist histograms hist posixt histogram of a date or date time object identify identify points in a scatter plot image display a color image layout specifying complex plot arrangements legend add legends to plots lines add connected line segments to a plot locator graphical input matplot plot columns of matrices mosaicplot mosaic plots mtext write text into the margins of a plot pairs scatterplot matrices panel smooth simple panel plot par set or query graphical parameters persp perspective plots pie pie charts plot dataframe plot method for data frames plot default the default scatterplot function plot design plot univariate effects of a design or...
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