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| Arrows | Draw arrows between pairs of points. |
| as.Date1970 | Date from a number of days since the start of 1970. |
| asNumericChar | Coerce to numeric dropping commas and info after a blank |
| asNumericDF | Coerce to numeric dropping commas and info after a blank |
| BoxCox | Box-Cox power transformation and its inverse |
| camelParse | Split a character string where a capital letter follows a lowercase letter |
| canbeNumeric | Can a variable reasonably be coerced to numeric? |
| checkNames | Check and return names |
| classIndex | Convert class to an integer 1-8 and vice versa |
| compareLengths | Compare the lengths of two objects |
| countByYear | Allocate a total by year |
| countsByYear | Allocate totals by year |
| createMessage | Compose a message as a single substring from a character vector |
| createX2matchY | Create X to match Y |
| Date3to1 | Convert three YMD vectors to a Date |
| dateCols | Identify YMD names in a character vector |
| Dates3to1 | Convert 3-column dates in data to class Date |
| dtruncdist | Truncated distribution |
| financialCrisisFiles | Files containing financial crisis data |
| getElement2 | Extract a named element from an object with a default |
| grepNonStandardCharacters | grep for nonstandard characters |
| index2class | Convert class to an integer 1-8 and vice versa |
| Interp | Interpolate between numbers or numbers of characters |
| Interp.default | Interpolate between numbers or numbers of characters |
| InterpChar | Interpolate between numbers or numbers of characters |
| interpChar | Interpolate between numbers or numbers of characters |
| interpChar.default | Interpolate between numbers or numbers of characters |
| interpChar.list | Interpolate between numbers or numbers of characters |
| InterpChkArgs | Interpolate between numbers or numbers of characters |
| InterpNum | Interpolate between numbers or numbers of characters |
| interpPairs | interpolate between pairs of vectors in a list |
| interpPairs.call | interpolate between pairs of vectors in a list |
| interpPairs.function | interpolate between pairs of vectors in a list |
| interpPairs.list | interpolate between pairs of vectors in a list |
| invBoxCox | Box-Cox power transformation and its inverse |
| lines.qqnorm2 | Normal Probability Plot with Multiple Symbols |
| logVarCor | Log-diagonal reprentation of a variance matrix |
| match.data.frame | Identify the row of 'y' best matching each row of 'x' |
| matchName | Match surname and givenName in a table |
| matchName1 | Match surname and givenName in a table |
| matchQuote | Match isolated quotes across records |
| mergeUShouse.senate | Expand a dataset on some members of the US Congress to the entire membership |
| mergeVote | Merge Roll Call Vote |
| missing0 | Missing or length 0 |
| nchar0 | Zero characters or NULL |
| Newdata | Create a new data.frame for predict |
| parseCommas | Convert character string with Dollar signs and commas to numerics |
| parseCommas.data.frame | Convert character string with Dollar signs and commas to numerics |
| parseCommas.default | Convert character string with Dollar signs and commas to numerics |
| parseDollars | Convert character string with Dollar signs and commas to numerics |
| parseName | Parse surname and given name |
| Ping | ping a Uniform resource locator (URL) |
| plot.qqnorm2 | Normal Probability Plot with Multiple Symbols |
| plot.qqnorm2s | Normal Probability Plot with Multiple Lines and Multiple Symbols |
| pmatch2 | Value matching or partial matching |
| points.qqnorm2 | Normal Probability Plot with Multiple Symbols |
| ptruncdist | Truncated distribution |
| qqnorm2 | Normal Probability Plot with Multiple Symbols |
| qqnorm2s | Normal Probability Plot with Multiple Lines and Multiple Symbols |
| qtruncdist | Truncated distribution |
| rasterImageAdj | rasterImage adjusting to zero distortion |
| read.testURLs | Read a file produced by testURLs |
| read.transpose | Read a data table in transpose form |
| readCookPVI | Read Cook Partisan Voting Index |
| readCookPVI. | Read Cook Partisan Voting Index |
| readDates3to1 | read.csv with Dates in 3 columns |
| readFinancialCrisisFiles | banking crisis data and function to read financial crisis files |
| readNIPA | Read a National Income and Product Accounts data table |
| readUShouse | Read the list of representatives in the United States House of Representatives |
| readUSsenate | Read the list of elected officials in the United States Senate |
| readUSstateAbbreviations | Read a list of abbreviations of states and territories of the United States |
| recode2 | bivariate recode |
| rgrep | Reverse grep |
| rtruncdist | Truncated distribution |
| sign | Sign function with zero option |
| strsplit1 | Split the first field |
| subNonStandardCharacters | sub nonstandard characters with replacement |
| subNonStandardNames | sub for nonstandard names |
| testURLs | Test URLs for intermittent download problems |
| trimImage | Trim zero rows or columns from an object of class 'Image'. |
| truncdist | Truncated distribution |
| UShouse.senate | Create a list of members of the US House and Senate |
| USsenateClass | Election Class given state and surname of a US Senator |
| whichAeqB | Index of a single match |