Start by making a project to keep all scripts and data files together. getwd() setwd(…)
if (!file.exists("Data")) {
dir.create("Data")
}
? download.fileURL of Baltimore Fixed Speed Camera Dataset - https://data.baltimorecity.gov/Transportation/Baltimore-Fixed-Speed-Cameras/dz54-2aru
fileURL <- "https://data.baltimorecity.gov/api/views/dz54-2aru/rows.csv?accessType=DOWNLOAD"
download.file(url = fileURL, destfile = "Data/cameras.csv", method = "curl", extra = c("-k"))
list.files(path = "Data")## [1] "cameras.csv" "cameras.xlsx"dateDownloaded <- date()
dateDownloaded## [1] "Sun Jun 28 19:35:34 2015"cameraData <- read.csv(file = "Data/cameras.csv")
str(cameraData)## 'data.frame': 80 obs. of 6 variables:
## $ address : Factor w/ 71 levels "E 33RD ST & THE ALAMEDA",..: 49 49 70 57 1 14 14 31 5 35 ...
## $ direction : Factor w/ 4 levels "E/B","N/B","S/B",..: 2 3 1 3 1 1 4 3 4 1 ...
## $ street : Factor w/ 55 levels "Caton Ave","Charles",..: 1 1 54 50 4 8 8 2 26 33 ...
## $ crossStreet : Factor w/ 66 levels "33rd St","4th St",..: 6 6 49 1 58 40 40 36 7 38 ...
## $ intersection: Factor w/ 74 levels " &","Caton Ave & Benson Ave",..: 2 2 73 69 7 13 13 3 35 47 ...
## $ Location.1 : Factor w/ 76 levels "(39.1999130165, -76.5559766825)",..: 7 6 8 49 48 35 36 74 32 29 ...head(cameraData)## address direction street crossStreet
## 1 S CATON AVE & BENSON AVE N/B Caton Ave Benson Ave
## 2 S CATON AVE & BENSON AVE S/B Caton Ave Benson Ave
## 3 WILKENS AVE & PINE HEIGHTS AVE E/B Wilkens Ave Pine Heights
## 4 THE ALAMEDA & E 33RD ST S/B The Alameda 33rd St
## 5 E 33RD ST & THE ALAMEDA E/B E 33rd The Alameda
## 6 ERDMAN AVE & N MACON ST E/B Erdman Macon St
## intersection Location.1
## 1 Caton Ave & Benson Ave (39.2693779962, -76.6688185297)
## 2 Caton Ave & Benson Ave (39.2693157898, -76.6689698176)
## 3 Wilkens Ave & Pine Heights (39.2720252302, -76.676960806)
## 4 The Alameda & 33rd St (39.3285013141, -76.5953545714)
## 5 E 33rd & The Alameda (39.3283410623, -76.5953594625)
## 6 Erdman & Macon St (39.3068045671, -76.5593167803)fileURLxlsx <- "https://data.baltimorecity.gov/api/views/dz54-2aru/rows.xlsx?accessType=DOWNLOAD"
download.file(url = fileURLxlsx, destfile = "Data/cameras.xlsx", extra = "-k", method = "curl")
dateDownloadedXLSX <- date()
library(xlsx)## Loading required package: rJava
## Loading required package: xlsxjarscameraDataXLSX <- read.xlsx(file = "Data/cameras.xlsx", sheetIndex = 1, header = TRUE)
head(cameraDataXLSX)## address direction street crossStreet
## 1 S CATON AVE & BENSON AVE N/B Caton Ave Benson Ave
## 2 S CATON AVE & BENSON AVE S/B Caton Ave Benson Ave
## 3 WILKENS AVE & PINE HEIGHTS AVE E/B Wilkens Ave Pine Heights
## 4 THE ALAMEDA & E 33RD ST S/B The Alameda 33rd St
## 5 E 33RD ST & THE ALAMEDA E/B E 33rd The Alameda
## 6 ERDMAN AVE & N MACON ST E/B Erdman Macon St
## intersection Location.1
## 1 Caton Ave & Benson Ave (39.2693779962, -76.6688185297)
## 2 Caton Ave & Benson Ave (39.2693157898, -76.6689698176)
## 3 Wilkens Ave & Pine Heights (39.2720252302, -76.676960806)
## 4 The Alameda & 33rd St (39.3285013141, -76.5953545714)
## 5 E 33rd & The Alameda (39.3283410623, -76.5953594625)
## 6 Erdman & Macon St (39.3068045671, -76.5593167803)cameraDataXLSXsubset <- read.xlsx(file = "Data/cameras.xlsx", sheetIndex = 1, header = TRUE, rowIndex = 3:10, colIndex = 2:5)
cameraDataXLSXsubset## S.B Caton.Ave Benson.Ave Caton.Ave...Benson.Ave
## 1 E/B Wilkens Ave Pine Heights Wilkens Ave & Pine Heights
## 2 S/B The Alameda 33rd St The Alameda & 33rd St
## 3 E/B E 33rd The Alameda E 33rd & The Alameda
## 4 E/B Erdman Macon St Erdman & Macon St
## 5 W/B Erdman Macon St Erdman & Macon St
## 6 S/B Charles Lake Ave Charles & Lake Ave
## 7 W/B Madison Caroline St Madison & Caroline StYou may even try XLConnect package to avail advanced options for working with excel files Freeing my RAM
rm("cameraData", "cameraDataXLSX", "cameraDataXLSXsubset")
rm("dateDownloaded", "dateDownloadedXLSX", "fileURL", "fileURLxlsx")For details on XML, you may refer to https://en.wikipedia.org/wiki/XML #Working with XML files
library(XML)
fileURLxml <- "http://www.w3schools.com/xml/simple.xml"
?xmlTreeParse
simpleDoc <- xmlTreeParse(file = fileURLxml, useInternalNodes = TRUE)Notice that simpleDoc is stored in RAM and no .xml file exists in Data folder. Of course it won’t exist, you did not specify the path here. But just in case you thought that it would be treated similar to .csv or .xlsx, I thought to mention it.
simpleRootNode <- xmlRoot(simpleDoc)
xmlName(simpleRootNode)## [1] "breakfast_menu"names(simpleRootNode)## food food food food food
## "food" "food" "food" "food" "food"class(simpleRootNode)## [1] "XMLInternalElementNode" "XMLInternalNode"
## [3] "XMLAbstractNode"Command 1
simpleRootNode[1]## $food
## <food>
## <name>Belgian Waffles</name>
## <price>$5.95</price>
## <description>Two of our famous Belgian Waffles with plenty of real maple syrup</description>
## <calories>650</calories>
## </food>
##
## attr(,"class")
## [1] "XMLInternalNodeList" "XMLNodeList"Command 2
simpleRootNode[[1]]## <food>
## <name>Belgian Waffles</name>
## <price>$5.95</price>
## <description>Two of our famous Belgian Waffles with plenty of real maple syrup</description>
## <calories>650</calories>
## </food>Command 3
simpleRootNode[[1]][1]## $name
## <name>Belgian Waffles</name>
##
## attr(,"class")
## [1] "XMLInternalNodeList" "XMLNodeList"Command 4
simpleRootNode[[1]][[1]]## <name>Belgian Waffles</name>The way the above statements execute, shows that you should access elements of simpleRootNode as in a list. You can programmatically extract different parts of the file
?xmlValue
?xmlSApply
xmlSApply(X = simpleRootNode, FUN = xmlValue)## food
## "Belgian Waffles$5.95Two of our famous Belgian Waffles with plenty of real maple syrup650"
## food
## "Strawberry Belgian Waffles$7.95Light Belgian waffles covered with strawberries and whipped cream900"
## food
## "Berry-Berry Belgian Waffles$8.95Light Belgian waffles covered with an assortment of fresh berries and whipped cream900"
## food
## "French Toast$4.50Thick slices made from our homemade sourdough bread600"
## food
## "Homestyle Breakfast$6.95Two eggs, bacon or sausage, toast, and our ever-popular hash browns950"You may try XPath language for completely exploring any XML file
?xpathSApply
xpathSApply(doc = simpleRootNode, path = "//name", fun = xmlValue)## [1] "Belgian Waffles" "Strawberry Belgian Waffles"
## [3] "Berry-Berry Belgian Waffles" "French Toast"
## [5] "Homestyle Breakfast"xpathSApply(doc = simpleRootNode, path = "//price", fun = xmlValue)## [1] "$5.95" "$7.95" "$8.95" "$4.50" "$6.95"brFileURL <- "http://espn.go.com/nfl/team/_/name/bal/baltimore-ravens"
brDoc <- htmlTreeParse(file = brFileURL, useInternalNodes = TRUE)
records <- xpathSApply(doc = brDoc, path = "//li[@class = 'record']", fun = xmlValue)
records## [1] "10-6" "10-6"teams <- xpathSApply(doc = brDoc, path = "//li[@class = 'team-name']", fun = xmlValue)
teams## [1] "Baltimore RavensRavens" "Baltimore RavensRavens"For details on JSON, visit - http://en.wikipedia.org/wiki/JSON #Working with JSON
library(jsonlite)##
## Attaching package: 'jsonlite'
##
## The following object is masked from 'package:utils':
##
## ViewjsonData <- fromJSON(txt = "https://api.github.com/users/jtleek/repos")
names(jsonData)## [1] "id" "name" "full_name"
## [4] "owner" "private" "html_url"
## [7] "description" "fork" "url"
## [10] "forks_url" "keys_url" "collaborators_url"
## [13] "teams_url" "hooks_url" "issue_events_url"
## [16] "events_url" "assignees_url" "branches_url"
## [19] "tags_url" "blobs_url" "git_tags_url"
## [22] "git_refs_url" "trees_url" "statuses_url"
## [25] "languages_url" "stargazers_url" "contributors_url"
## [28] "subscribers_url" "subscription_url" "commits_url"
## [31] "git_commits_url" "comments_url" "issue_comment_url"
## [34] "contents_url" "compare_url" "merges_url"
## [37] "archive_url" "downloads_url" "issues_url"
## [40] "pulls_url" "milestones_url" "notifications_url"
## [43] "labels_url" "releases_url" "created_at"
## [46] "updated_at" "pushed_at" "git_url"
## [49] "ssh_url" "clone_url" "svn_url"
## [52] "homepage" "size" "stargazers_count"
## [55] "watchers_count" "language" "has_issues"
## [58] "has_downloads" "has_wiki" "has_pages"
## [61] "forks_count" "mirror_url" "open_issues_count"
## [64] "forks" "open_issues" "watchers"
## [67] "default_branch"names(jsonData$owner)## [1] "login" "id" "avatar_url"
## [4] "gravatar_id" "url" "html_url"
## [7] "followers_url" "following_url" "gists_url"
## [10] "starred_url" "subscriptions_url" "organizations_url"
## [13] "repos_url" "events_url" "received_events_url"
## [16] "type" "site_admin"names(jsonData$owner)## [1] "login" "id" "avatar_url"
## [4] "gravatar_id" "url" "html_url"
## [7] "followers_url" "following_url" "gists_url"
## [10] "starred_url" "subscriptions_url" "organizations_url"
## [13] "repos_url" "events_url" "received_events_url"
## [16] "type" "site_admin"jsonData$owner$received_events_url## [1] "https://api.github.com/users/jtleek/received_events"
## [2] "https://api.github.com/users/jtleek/received_events"
## [3] "https://api.github.com/users/jtleek/received_events"
## [4] "https://api.github.com/users/jtleek/received_events"
## [5] "https://api.github.com/users/jtleek/received_events"
## [6] "https://api.github.com/users/jtleek/received_events"
## [7] "https://api.github.com/users/jtleek/received_events"
## [8] "https://api.github.com/users/jtleek/received_events"
## [9] "https://api.github.com/users/jtleek/received_events"
## [10] "https://api.github.com/users/jtleek/received_events"
## [11] "https://api.github.com/users/jtleek/received_events"
## [12] "https://api.github.com/users/jtleek/received_events"
## [13] "https://api.github.com/users/jtleek/received_events"
## [14] "https://api.github.com/users/jtleek/received_events"
## [15] "https://api.github.com/users/jtleek/received_events"
## [16] "https://api.github.com/users/jtleek/received_events"
## [17] "https://api.github.com/users/jtleek/received_events"
## [18] "https://api.github.com/users/jtleek/received_events"
## [19] "https://api.github.com/users/jtleek/received_events"
## [20] "https://api.github.com/users/jtleek/received_events"
## [21] "https://api.github.com/users/jtleek/received_events"
## [22] "https://api.github.com/users/jtleek/received_events"
## [23] "https://api.github.com/users/jtleek/received_events"
## [24] "https://api.github.com/users/jtleek/received_events"
## [25] "https://api.github.com/users/jtleek/received_events"
## [26] "https://api.github.com/users/jtleek/received_events"
## [27] "https://api.github.com/users/jtleek/received_events"
## [28] "https://api.github.com/users/jtleek/received_events"
## [29] "https://api.github.com/users/jtleek/received_events"
## [30] "https://api.github.com/users/jtleek/received_events"?iris #' Edgar Anderson's Iris Data
iris.json <- toJSON(iris, pretty = TRUE) #' pretty = TRUE will give you nice indentation
? cat #' Concatenate and Print
cat(iris.json)## [
## {
## "Sepal.Length": 5.1,
## "Sepal.Width": 3.5,
## "Petal.Length": 1.4,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.9,
## "Sepal.Width": 3,
## "Petal.Length": 1.4,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.7,
## "Sepal.Width": 3.2,
## "Petal.Length": 1.3,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.6,
## "Sepal.Width": 3.1,
## "Petal.Length": 1.5,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5,
## "Sepal.Width": 3.6,
## "Petal.Length": 1.4,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.4,
## "Sepal.Width": 3.9,
## "Petal.Length": 1.7,
## "Petal.Width": 0.4,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.6,
## "Sepal.Width": 3.4,
## "Petal.Length": 1.4,
## "Petal.Width": 0.3,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5,
## "Sepal.Width": 3.4,
## "Petal.Length": 1.5,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.4,
## "Sepal.Width": 2.9,
## "Petal.Length": 1.4,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.9,
## "Sepal.Width": 3.1,
## "Petal.Length": 1.5,
## "Petal.Width": 0.1,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.4,
## "Sepal.Width": 3.7,
## "Petal.Length": 1.5,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.8,
## "Sepal.Width": 3.4,
## "Petal.Length": 1.6,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.8,
## "Sepal.Width": 3,
## "Petal.Length": 1.4,
## "Petal.Width": 0.1,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.3,
## "Sepal.Width": 3,
## "Petal.Length": 1.1,
## "Petal.Width": 0.1,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.8,
## "Sepal.Width": 4,
## "Petal.Length": 1.2,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.7,
## "Sepal.Width": 4.4,
## "Petal.Length": 1.5,
## "Petal.Width": 0.4,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.4,
## "Sepal.Width": 3.9,
## "Petal.Length": 1.3,
## "Petal.Width": 0.4,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.1,
## "Sepal.Width": 3.5,
## "Petal.Length": 1.4,
## "Petal.Width": 0.3,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.7,
## "Sepal.Width": 3.8,
## "Petal.Length": 1.7,
## "Petal.Width": 0.3,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.1,
## "Sepal.Width": 3.8,
## "Petal.Length": 1.5,
## "Petal.Width": 0.3,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.4,
## "Sepal.Width": 3.4,
## "Petal.Length": 1.7,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.1,
## "Sepal.Width": 3.7,
## "Petal.Length": 1.5,
## "Petal.Width": 0.4,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.6,
## "Sepal.Width": 3.6,
## "Petal.Length": 1,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.1,
## "Sepal.Width": 3.3,
## "Petal.Length": 1.7,
## "Petal.Width": 0.5,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.8,
## "Sepal.Width": 3.4,
## "Petal.Length": 1.9,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5,
## "Sepal.Width": 3,
## "Petal.Length": 1.6,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5,
## "Sepal.Width": 3.4,
## "Petal.Length": 1.6,
## "Petal.Width": 0.4,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.2,
## "Sepal.Width": 3.5,
## "Petal.Length": 1.5,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.2,
## "Sepal.Width": 3.4,
## "Petal.Length": 1.4,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.7,
## "Sepal.Width": 3.2,
## "Petal.Length": 1.6,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.8,
## "Sepal.Width": 3.1,
## "Petal.Length": 1.6,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.4,
## "Sepal.Width": 3.4,
## "Petal.Length": 1.5,
## "Petal.Width": 0.4,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.2,
## "Sepal.Width": 4.1,
## "Petal.Length": 1.5,
## "Petal.Width": 0.1,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.5,
## "Sepal.Width": 4.2,
## "Petal.Length": 1.4,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.9,
## "Sepal.Width": 3.1,
## "Petal.Length": 1.5,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5,
## "Sepal.Width": 3.2,
## "Petal.Length": 1.2,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.5,
## "Sepal.Width": 3.5,
## "Petal.Length": 1.3,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.9,
## "Sepal.Width": 3.6,
## "Petal.Length": 1.4,
## "Petal.Width": 0.1,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.4,
## "Sepal.Width": 3,
## "Petal.Length": 1.3,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.1,
## "Sepal.Width": 3.4,
## "Petal.Length": 1.5,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5,
## "Sepal.Width": 3.5,
## "Petal.Length": 1.3,
## "Petal.Width": 0.3,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.5,
## "Sepal.Width": 2.3,
## "Petal.Length": 1.3,
## "Petal.Width": 0.3,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.4,
## "Sepal.Width": 3.2,
## "Petal.Length": 1.3,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5,
## "Sepal.Width": 3.5,
## "Petal.Length": 1.6,
## "Petal.Width": 0.6,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.1,
## "Sepal.Width": 3.8,
## "Petal.Length": 1.9,
## "Petal.Width": 0.4,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.8,
## "Sepal.Width": 3,
## "Petal.Length": 1.4,
## "Petal.Width": 0.3,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.1,
## "Sepal.Width": 3.8,
## "Petal.Length": 1.6,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 4.6,
## "Sepal.Width": 3.2,
## "Petal.Length": 1.4,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5.3,
## "Sepal.Width": 3.7,
## "Petal.Length": 1.5,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 5,
## "Sepal.Width": 3.3,
## "Petal.Length": 1.4,
## "Petal.Width": 0.2,
## "Species": "setosa"
## },
## {
## "Sepal.Length": 7,
## "Sepal.Width": 3.2,
## "Petal.Length": 4.7,
## "Petal.Width": 1.4,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.4,
## "Sepal.Width": 3.2,
## "Petal.Length": 4.5,
## "Petal.Width": 1.5,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.9,
## "Sepal.Width": 3.1,
## "Petal.Length": 4.9,
## "Petal.Width": 1.5,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.5,
## "Sepal.Width": 2.3,
## "Petal.Length": 4,
## "Petal.Width": 1.3,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.5,
## "Sepal.Width": 2.8,
## "Petal.Length": 4.6,
## "Petal.Width": 1.5,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.7,
## "Sepal.Width": 2.8,
## "Petal.Length": 4.5,
## "Petal.Width": 1.3,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.3,
## "Sepal.Width": 3.3,
## "Petal.Length": 4.7,
## "Petal.Width": 1.6,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 4.9,
## "Sepal.Width": 2.4,
## "Petal.Length": 3.3,
## "Petal.Width": 1,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.6,
## "Sepal.Width": 2.9,
## "Petal.Length": 4.6,
## "Petal.Width": 1.3,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.2,
## "Sepal.Width": 2.7,
## "Petal.Length": 3.9,
## "Petal.Width": 1.4,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5,
## "Sepal.Width": 2,
## "Petal.Length": 3.5,
## "Petal.Width": 1,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.9,
## "Sepal.Width": 3,
## "Petal.Length": 4.2,
## "Petal.Width": 1.5,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6,
## "Sepal.Width": 2.2,
## "Petal.Length": 4,
## "Petal.Width": 1,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.1,
## "Sepal.Width": 2.9,
## "Petal.Length": 4.7,
## "Petal.Width": 1.4,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.6,
## "Sepal.Width": 2.9,
## "Petal.Length": 3.6,
## "Petal.Width": 1.3,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.7,
## "Sepal.Width": 3.1,
## "Petal.Length": 4.4,
## "Petal.Width": 1.4,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.6,
## "Sepal.Width": 3,
## "Petal.Length": 4.5,
## "Petal.Width": 1.5,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.8,
## "Sepal.Width": 2.7,
## "Petal.Length": 4.1,
## "Petal.Width": 1,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.2,
## "Sepal.Width": 2.2,
## "Petal.Length": 4.5,
## "Petal.Width": 1.5,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.6,
## "Sepal.Width": 2.5,
## "Petal.Length": 3.9,
## "Petal.Width": 1.1,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.9,
## "Sepal.Width": 3.2,
## "Petal.Length": 4.8,
## "Petal.Width": 1.8,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.1,
## "Sepal.Width": 2.8,
## "Petal.Length": 4,
## "Petal.Width": 1.3,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.3,
## "Sepal.Width": 2.5,
## "Petal.Length": 4.9,
## "Petal.Width": 1.5,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.1,
## "Sepal.Width": 2.8,
## "Petal.Length": 4.7,
## "Petal.Width": 1.2,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.4,
## "Sepal.Width": 2.9,
## "Petal.Length": 4.3,
## "Petal.Width": 1.3,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.6,
## "Sepal.Width": 3,
## "Petal.Length": 4.4,
## "Petal.Width": 1.4,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.8,
## "Sepal.Width": 2.8,
## "Petal.Length": 4.8,
## "Petal.Width": 1.4,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.7,
## "Sepal.Width": 3,
## "Petal.Length": 5,
## "Petal.Width": 1.7,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6,
## "Sepal.Width": 2.9,
## "Petal.Length": 4.5,
## "Petal.Width": 1.5,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.7,
## "Sepal.Width": 2.6,
## "Petal.Length": 3.5,
## "Petal.Width": 1,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.5,
## "Sepal.Width": 2.4,
## "Petal.Length": 3.8,
## "Petal.Width": 1.1,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.5,
## "Sepal.Width": 2.4,
## "Petal.Length": 3.7,
## "Petal.Width": 1,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.8,
## "Sepal.Width": 2.7,
## "Petal.Length": 3.9,
## "Petal.Width": 1.2,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6,
## "Sepal.Width": 2.7,
## "Petal.Length": 5.1,
## "Petal.Width": 1.6,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.4,
## "Sepal.Width": 3,
## "Petal.Length": 4.5,
## "Petal.Width": 1.5,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6,
## "Sepal.Width": 3.4,
## "Petal.Length": 4.5,
## "Petal.Width": 1.6,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.7,
## "Sepal.Width": 3.1,
## "Petal.Length": 4.7,
## "Petal.Width": 1.5,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.3,
## "Sepal.Width": 2.3,
## "Petal.Length": 4.4,
## "Petal.Width": 1.3,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.6,
## "Sepal.Width": 3,
## "Petal.Length": 4.1,
## "Petal.Width": 1.3,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.5,
## "Sepal.Width": 2.5,
## "Petal.Length": 4,
## "Petal.Width": 1.3,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.5,
## "Sepal.Width": 2.6,
## "Petal.Length": 4.4,
## "Petal.Width": 1.2,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.1,
## "Sepal.Width": 3,
## "Petal.Length": 4.6,
## "Petal.Width": 1.4,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.8,
## "Sepal.Width": 2.6,
## "Petal.Length": 4,
## "Petal.Width": 1.2,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5,
## "Sepal.Width": 2.3,
## "Petal.Length": 3.3,
## "Petal.Width": 1,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.6,
## "Sepal.Width": 2.7,
## "Petal.Length": 4.2,
## "Petal.Width": 1.3,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.7,
## "Sepal.Width": 3,
## "Petal.Length": 4.2,
## "Petal.Width": 1.2,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.7,
## "Sepal.Width": 2.9,
## "Petal.Length": 4.2,
## "Petal.Width": 1.3,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.2,
## "Sepal.Width": 2.9,
## "Petal.Length": 4.3,
## "Petal.Width": 1.3,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.1,
## "Sepal.Width": 2.5,
## "Petal.Length": 3,
## "Petal.Width": 1.1,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 5.7,
## "Sepal.Width": 2.8,
## "Petal.Length": 4.1,
## "Petal.Width": 1.3,
## "Species": "versicolor"
## },
## {
## "Sepal.Length": 6.3,
## "Sepal.Width": 3.3,
## "Petal.Length": 6,
## "Petal.Width": 2.5,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 5.8,
## "Sepal.Width": 2.7,
## "Petal.Length": 5.1,
## "Petal.Width": 1.9,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 7.1,
## "Sepal.Width": 3,
## "Petal.Length": 5.9,
## "Petal.Width": 2.1,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.3,
## "Sepal.Width": 2.9,
## "Petal.Length": 5.6,
## "Petal.Width": 1.8,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.5,
## "Sepal.Width": 3,
## "Petal.Length": 5.8,
## "Petal.Width": 2.2,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 7.6,
## "Sepal.Width": 3,
## "Petal.Length": 6.6,
## "Petal.Width": 2.1,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 4.9,
## "Sepal.Width": 2.5,
## "Petal.Length": 4.5,
## "Petal.Width": 1.7,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 7.3,
## "Sepal.Width": 2.9,
## "Petal.Length": 6.3,
## "Petal.Width": 1.8,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.7,
## "Sepal.Width": 2.5,
## "Petal.Length": 5.8,
## "Petal.Width": 1.8,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 7.2,
## "Sepal.Width": 3.6,
## "Petal.Length": 6.1,
## "Petal.Width": 2.5,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.5,
## "Sepal.Width": 3.2,
## "Petal.Length": 5.1,
## "Petal.Width": 2,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.4,
## "Sepal.Width": 2.7,
## "Petal.Length": 5.3,
## "Petal.Width": 1.9,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.8,
## "Sepal.Width": 3,
## "Petal.Length": 5.5,
## "Petal.Width": 2.1,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 5.7,
## "Sepal.Width": 2.5,
## "Petal.Length": 5,
## "Petal.Width": 2,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 5.8,
## "Sepal.Width": 2.8,
## "Petal.Length": 5.1,
## "Petal.Width": 2.4,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.4,
## "Sepal.Width": 3.2,
## "Petal.Length": 5.3,
## "Petal.Width": 2.3,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.5,
## "Sepal.Width": 3,
## "Petal.Length": 5.5,
## "Petal.Width": 1.8,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 7.7,
## "Sepal.Width": 3.8,
## "Petal.Length": 6.7,
## "Petal.Width": 2.2,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 7.7,
## "Sepal.Width": 2.6,
## "Petal.Length": 6.9,
## "Petal.Width": 2.3,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6,
## "Sepal.Width": 2.2,
## "Petal.Length": 5,
## "Petal.Width": 1.5,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.9,
## "Sepal.Width": 3.2,
## "Petal.Length": 5.7,
## "Petal.Width": 2.3,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 5.6,
## "Sepal.Width": 2.8,
## "Petal.Length": 4.9,
## "Petal.Width": 2,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 7.7,
## "Sepal.Width": 2.8,
## "Petal.Length": 6.7,
## "Petal.Width": 2,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.3,
## "Sepal.Width": 2.7,
## "Petal.Length": 4.9,
## "Petal.Width": 1.8,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.7,
## "Sepal.Width": 3.3,
## "Petal.Length": 5.7,
## "Petal.Width": 2.1,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 7.2,
## "Sepal.Width": 3.2,
## "Petal.Length": 6,
## "Petal.Width": 1.8,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.2,
## "Sepal.Width": 2.8,
## "Petal.Length": 4.8,
## "Petal.Width": 1.8,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.1,
## "Sepal.Width": 3,
## "Petal.Length": 4.9,
## "Petal.Width": 1.8,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.4,
## "Sepal.Width": 2.8,
## "Petal.Length": 5.6,
## "Petal.Width": 2.1,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 7.2,
## "Sepal.Width": 3,
## "Petal.Length": 5.8,
## "Petal.Width": 1.6,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 7.4,
## "Sepal.Width": 2.8,
## "Petal.Length": 6.1,
## "Petal.Width": 1.9,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 7.9,
## "Sepal.Width": 3.8,
## "Petal.Length": 6.4,
## "Petal.Width": 2,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.4,
## "Sepal.Width": 2.8,
## "Petal.Length": 5.6,
## "Petal.Width": 2.2,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.3,
## "Sepal.Width": 2.8,
## "Petal.Length": 5.1,
## "Petal.Width": 1.5,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.1,
## "Sepal.Width": 2.6,
## "Petal.Length": 5.6,
## "Petal.Width": 1.4,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 7.7,
## "Sepal.Width": 3,
## "Petal.Length": 6.1,
## "Petal.Width": 2.3,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.3,
## "Sepal.Width": 3.4,
## "Petal.Length": 5.6,
## "Petal.Width": 2.4,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.4,
## "Sepal.Width": 3.1,
## "Petal.Length": 5.5,
## "Petal.Width": 1.8,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6,
## "Sepal.Width": 3,
## "Petal.Length": 4.8,
## "Petal.Width": 1.8,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.9,
## "Sepal.Width": 3.1,
## "Petal.Length": 5.4,
## "Petal.Width": 2.1,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.7,
## "Sepal.Width": 3.1,
## "Petal.Length": 5.6,
## "Petal.Width": 2.4,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.9,
## "Sepal.Width": 3.1,
## "Petal.Length": 5.1,
## "Petal.Width": 2.3,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 5.8,
## "Sepal.Width": 2.7,
## "Petal.Length": 5.1,
## "Petal.Width": 1.9,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.8,
## "Sepal.Width": 3.2,
## "Petal.Length": 5.9,
## "Petal.Width": 2.3,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.7,
## "Sepal.Width": 3.3,
## "Petal.Length": 5.7,
## "Petal.Width": 2.5,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.7,
## "Sepal.Width": 3,
## "Petal.Length": 5.2,
## "Petal.Width": 2.3,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.3,
## "Sepal.Width": 2.5,
## "Petal.Length": 5,
## "Petal.Width": 1.9,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.5,
## "Sepal.Width": 3,
## "Petal.Length": 5.2,
## "Petal.Width": 2,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 6.2,
## "Sepal.Width": 3.4,
## "Petal.Length": 5.4,
## "Petal.Width": 2.3,
## "Species": "virginica"
## },
## {
## "Sepal.Length": 5.9,
## "Sepal.Width": 3,
## "Petal.Length": 5.1,
## "Petal.Width": 1.8,
## "Species": "virginica"
## }
## ]iris.df <- fromJSON(txt = iris.json)
head(iris.df)## Sepal.Length Sepal.Width Petal.Length Petal.Width Species
## 1 5.1 3.5 1.4 0.2 setosa
## 2 4.9 3.0 1.4 0.2 setosa
## 3 4.7 3.2 1.3 0.2 setosa
## 4 4.6 3.1 1.5 0.2 setosa
## 5 5.0 3.6 1.4 0.2 setosa
## 6 5.4 3.9 1.7 0.4 setosastr(iris.df)## 'data.frame': 150 obs. of 5 variables:
## $ Sepal.Length: num 5.1 4.9 4.7 4.6 5 5.4 4.6 5 4.4 4.9 ...
## $ Sepal.Width : num 3.5 3 3.2 3.1 3.6 3.9 3.4 3.4 2.9 3.1 ...
## $ Petal.Length: num 1.4 1.4 1.3 1.5 1.4 1.7 1.4 1.5 1.4 1.5 ...
## $ Petal.Width : num 0.2 0.2 0.2 0.2 0.2 0.4 0.3 0.2 0.2 0.1 ...
## $ Species : chr "setosa" "setosa" "setosa" "setosa" ...