<\/p>\n
U kunt de volgende functies gebruiken om te controleren welke pakketversie in R is geladen:<\/span><\/p>\n Het volgende voorbeeld laat zien hoe u deze functies in de praktijk kunt gebruiken.<\/p>\n Laten we zeggen dat we het ggplot2-<\/strong> pakket in onze huidige R-omgeving laden:<\/span><\/p>\n We kunnen de functie packageVersion()<\/strong> gebruiken om te controleren welke versie van ggplot2 is geladen:<\/span><\/p>\n We zien dat versie 3.2.2<\/strong> is geladen.<\/span><\/p>\n Om erachter te komen wanneer deze versie is uitgebracht, kunt u de functie packageDate()<\/strong> gebruiken:<\/span><\/p>\n We kunnen zien dat deze versie op 17 juni 2020 is uitgebracht.<\/span><\/p>\n En om een beschrijving van het pakket weer te geven, kunnen we de functie packageDescription()<\/strong> gebruiken:<\/span><\/p>\n De beschrijving bevat een korte uitleg van wat het pakket doet, wie het pakket heeft gemaakt, waar u bugs kunt melden, wanneer het is uitgebracht, en meer.<\/span><\/p>\n In de volgende tutorials wordt uitgelegd hoe u andere veelvoorkomende taken in R kunt uitvoeren:<\/p>\n Hoe de omgeving te wissen in R<\/a> U kunt de volgende functies gebruiken om te controleren welke pakketversie in R is geladen: #display package version packageVersion(“ ggplot2 „) #display the date when this package version was released packageDate(“ ggplot2 „) #display description of the package packageDescription(“ ggplot2 „) Het volgende voorbeeld laat zien hoe u deze functies in de praktijk kunt gebruiken. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-4141","post","type-post","status-publish","format-standard","hentry","category-gids"],"yoast_head":"\n #display package version\n<\/span>packageVersion(\" ggplot2<\/span> \")\n\n#display the date when this package version was released\n<\/span>packageDate(\" ggplot2<\/span> \")\n\n#display description of the package\n<\/span>packageDescription(\" ggplot2<\/span> \")\n<\/strong><\/pre>\n Voorbeeld: Controleer welke pakketversie in R is geladen<\/strong><\/span><\/h2>\n
library<\/span> (ggplot2)<\/strong><\/pre>\n #display package version\n<\/span>packageVersion(\" ggplot2<\/span> \")\n\n[1] '3.3.2'\n<\/strong><\/pre>\n #display the date when this package version was released\n<\/span>packageDate(\" ggplot2<\/span> \")\n\n[1] \"2020-06-17\"\n<\/strong><\/pre>\n #display description of the package\n<\/span>packageDescription(\" ggplot2<\/span> \")\n\nPackage: ggplot2\nVersion: 3.3.2\nTitle: Create Elegant Data Visualizations Using the Grammar of Graphics\nDescription: A system for 'declaratively' creating graphics, based on\n \"The Grammar of Graphics\". You provide the data, tell 'ggplot2'\n how to map variables to aesthetics, what graphical primitives\n to use, and it takes care of the details.\nAuthors@R: c( person(\"Hadley\", \"Wickham\", , \"hadley@rstudio.com\",\n \"aut\", comment = c(ORCID = \"0000-0003-4757-117X\"),\n person(\"Winston\", \"Chang\", , role = \"aut\", comment = c(ORCID =\n \"0000-0002-1576-2126\"), person(\"Lionel\", \"Henry\", , role =\n \"aut\"), person(\"Thomas Lin\", \"Pedersen\", ,\n \"thomas.pedersen@rstudio.com\", role = c(\"aut\", \"cre\"), comment\n = c(ORCID = \"0000-0002-5147-4711\"), person(\"Kohske\",\n \"Takahashi\", role = \"aut\"), person(\"Claus\", \"Wilke\", role =\n \"aut\", comment = c(ORCID = \"0000-0002-7470-9261\"),\n person(\"Kara\", \"Woo\", role = \"aut\", comment = c(ORCID =\n \"0000-0002-5125-4188\"), person(\"Hiroaki\", \"Yutani\", role =\n \"aut\", comment = c(ORCID = \"0000-0002-3385-7233\"),\n person(\"Dewey\", \"Dunnington\", role = \"aut\", comment = c(ORCID =\n \"0000-0002-9415-4582\"), person(\"RStudio\", role = c(\"cph\",\n \"fnd\")))\nDepends: R (>= 3.2)\nImports: digest, glue, grDevices, grid, gtable (>= 0.1.1), isoband,\n MASS, mgcv, rlang (>= 0.3.0), scales (>= 0.5.0), stats, tibble,\n withr (>= 2.0.0)\nSuggested: covr, dplyr, ggplot2movies, hexbin, Hmisc, knitr, lattice,\n mapproj, maps, maptools, multcomp, munsell, nlme, profvis,\n quantreg, RColorBrewer, rgeos, rmarkdown, rpart, sf (>= 0.7-3),\n svglite (>= 1.2.0.9001), testthat (>= 2.1.0), vdiffr (>= 0.3.0)\nEnhances:sp\nLicense: GPL-2 | LICENSE file\nURL: https:\/\/ggplot2.tidyverse.org, https:\/\/github.com\/tidyverse\/ggplot2\nBugReports: https:\/\/github.com\/tidyverse\/ggplot2\/issues\nLazyData: true\nCollate: 'ggproto.r' 'ggplot-global.R' 'aaa-.r'\n 'aes-color-fill-alpha.r' .....\nThumbnailBuilder: knitr\nRoxygen Note: 7.1.0.9000\nEncoding: UTF-8\nNeedsCompilation: no\nPackaged: 2020-06-17 06:03:58 UTC; thomas\nAuthor: Hadley Wickham [aut] (<https:\/\/orcid.org\/0000-0003-4757-117X>),\n Winston Chang [aut] (<https:\/\/orcid.org\/0000-0002-1576-2126>),\n Lionel Henry [aut], Thomas Lin Pedersen [aut, cre]\n (<https:\/\/orcid.org\/0000-0002-5147-4711>), Kohske Takahashi\n [aut], Claus Wilke [aut]\n (<https:\/\/orcid.org\/0000-0002-7470-9261>), Kara Woo [aut]\n (<https:\/\/orcid.org\/0000-0002-5125-4188>), Hiroaki Yutani [aut]\n (<https:\/\/orcid.org\/0000-0002-3385-7233>), Dewey Dunnington\n [aut] (<https:\/\/orcid.org\/0000-0002-9415-4582>), RStudio [cph,\n fnd]\nMaintainer: Thomas Lin Pedersen <thomas.pedersen@rstudio.com>\nRepository: CRAN\nDate\/Publication: 2020-06-19 13:00:03 UTC\nBuilt: R 4.0.3; ; 2020-11-20 18:07:33 UTC; unix\n\n-- File: \/usr\/lib\/R\/site-library\/ggplot2\/Meta\/package.rds<\/strong><\/pre>\n Aanvullende bronnen<\/strong><\/span><\/h2>\n
Hoe te controleren of een bestand bestaat in R<\/a>
Hoe setwd\/getwd te gebruiken in R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"