挿入済みのパッケージで利用可能なデータ一覧を表示する。
data()
Data sets in package ‘datasets’:
AirPassengers Monthly Airline Passenger Numbers 1949-1960
BJsales Sales Data with Leading Indicator
BJsales.lead (BJsales) Sales Data with Leading Indicator
BOD Biochemical Oxygen Demand
CO2 Carbon Dioxide Uptake in Grass Plants
ChickWeight Weight versus age of chicks on different diets
DNase Elisa assay of DNase
EuStockMarkets Daily Closing Prices of Major European Stock Indices,
1991-1998
Formaldehyde Determination of Formaldehyde
HairEyeColor Hair and Eye Color of Statistics Students
Harman23.cor Harman Example 2.3
Harman74.cor Harman Example 7.4
Indometh Pharmacokinetics of Indomethacin
InsectSprays Effectiveness of Insect Sprays
JohnsonJohnson Quarterly Earnings per Johnson & Johnson Share
LakeHuron Level of Lake Huron 1875-1972
LifeCycleSavings Intercountry Life-Cycle Savings Data
Loblolly Growth of Loblolly pine trees
Nile Flow of the River Nile
Orange Growth of Orange Trees
OrchardSprays Potency of Orchard Sprays
PlantGrowth Results from an Experiment on Plant Growth
Puromycin Reaction Velocity of an Enzymatic Reaction
Seatbelts Road Casualties in Great Britain 1969-84
Theoph Pharmacokinetics of Theophylline
Titanic Survival of passengers on the Titanic
ToothGrowth The Effect of Vitamin C on Tooth Growth in Guinea Pigs
UCBAdmissions Student Admissions at UC Berkeley
UKDriverDeaths Road Casualties in Great Britain 1969-84
UKgas UK Quarterly Gas Consumption
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
UScitiesD Distances Between European Cities and Between US Cities
VADeaths Death Rates in Virginia (1940)
WWWusage Internet Usage per Minute
WorldPhones The World's Telephones
ability.cov Ability and Intelligence Tests
airmiles Passenger Miles on Commercial US Airlines, 1937-1960
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
beaver1 (beavers) Body Temperature Series of Two Beavers
beaver2 (beavers) Body Temperature Series of Two Beavers
cars Speed and Stopping Distances of Cars
chickwts Chicken Weights by Feed Type
co2 Mauna Loa Atmospheric CO2 Concentration
crimtab Student's 3000 Criminals Data
discoveries Yearly Numbers of Important Discoveries
esoph Smoking, Alcohol and (O)esophageal Cancer
euro Conversion Rates of Euro Currencies
euro.cross (euro) Conversion Rates of Euro Currencies
eurodist Distances Between European Cities and Between US Cities
faithful Old Faithful Geyser Data
fdeaths (UKLungDeaths) Monthly Deaths from Lung Diseases in the UK
freeny Freeny's Revenue Data
freeny.x (freeny) Freeny's Revenue Data
freeny.y (freeny) Freeny's Revenue Data
infert Infertility after Spontaneous and Induced Abortion
iris Edgar Anderson's Iris Data
iris3 Edgar Anderson's Iris Data
islands Areas of the World's Major Landmasses
ldeaths (UKLungDeaths) Monthly Deaths from Lung Diseases in the UK
lh Luteinizing Hormone in Blood Samples
longley Longley's Economic Regression Data
lynx Annual Canadian Lynx trappings 1821-1934
mdeaths (UKLungDeaths) Monthly Deaths from Lung Diseases in the UK
morley Michelson Speed of Light Data
mtcars Motor Trend Car Road Tests
nhtemp Average Yearly Temperatures in New Haven
nottem Average Monthly Temperatures at Nottingham, 1920-1939
npk Classical N, P, K Factorial Experiment
occupationalStatus Occupational Status of Fathers and their Sons
precip Annual Precipitation in US Cities
presidents Quarterly Approval Ratings of US Presidents
pressure Vapor Pressure of Mercury as a Function of Temperature
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
stack.loss (stackloss) Brownlee's Stack Loss Plant Data
stack.x (stackloss) Brownlee's Stack Loss Plant Data
stackloss Brownlee's Stack Loss Plant Data
state.abb (state) US State Facts and Figures
state.area (state) US State Facts and Figures
state.center (state) US State Facts and Figures
state.division (state) US State Facts and Figures
state.name (state) US State Facts and Figures
state.region (state) US State Facts and Figures
state.x77 (state) US State Facts and Figures
sunspot.month Monthly Sunspot Data, from 1749 to "Present"
sunspot.year Yearly Sunspot Data, 1700-1988
sunspots Monthly Sunspot Numbers, 1749-1983
swiss Swiss Fertility and Socioeconomic Indicators (1888) Data
treering Yearly Treering Data, -6000-1979
trees Girth, Height and Volume for Black Cherry Trees
uspop Populations Recorded by the US Census
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
Use ‘data(package = .packages(all.available = TRUE))’
to list the data sets in all *available* packages.# 挿入済みで有効なパッケージのみを表示する
data(package = .packages(all.available = TRUE))# パッケージ名を指定して利用可能なデータ一覧を表示する
data(package = "ggplot2")読み込まれたデータの列数を数える
# 030temp.txtを読み込む
count.fields("030temp.txt", sep = ",")## [1] 12030temp.txtの内容は
"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"CSV形式のデータを読み込む
# 030temp.csv:"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"
x <- read.csv("030temp.csv", header = FALSE, quote = "\"", sep = ",")
x## V1 V2 V3 V4 V5 V6 V7 V8 V9 V10 V11 V12
## 1 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec| 関数 | header | sep | quote | dec | fill |
|---|---|---|---|---|---|
| read.csv | TRUE | , | " | . | TRUE |
| read.csv2 | TRUE | ; | " | , | TRUE |
read.csv2は、セミコロンで区切られ、小数点がカンマの時に使用する。
csv形式のファイルを作成する
write.csv(mtcars, file = "030mtcars.csv", row.names = FALSE, fileEncoding = "UTF-8")タブ区切りデータの読み込み
# 030temp.tsv:"Jan" "Feb" "Mar" "Apr" "May" "Jun" "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"
x <- read.delim("030temp.tsv", header = FALSE, quote = "\"", sep = "\t")
x## V1 V2 V3 V4 V5 V6 V7 V8 V9 V10 V11 V12 V13
## 1 Jan Feb Mar Apr May Jun Jul NA Aug Sep Oct Nov Dec| 関数 | header | sep | quote | dec | fill |
|---|---|---|---|---|---|
| read.delim | TRUE | \t | " | . | TRUE |
| read.delim2 | TRUE | \t | " | , | TRUE |
read.delim2は、tabで区切られ、小数点がカンマの時に使用する。
タブ区切りデータの書き込み
library(caroline)
write.delim(mtcars, file = "030mtcars.tsv", row.names = FALSE, fileEncoding = "UTF-8")保存された「030mtcars.tsv」の内容
mpg cyl disp hp drat wt qsec vs am gear carb
21 6 160 110 3.9 2.62 16.46 0 1 4 4
21 6 160 110 3.9 2.875 17.02 0 1 4 4
22.8 4 108 93 3.85 2.32 18.61 1 1 4 1
21.4 6 258 110 3.08 3.215 19.44 1 0 3 1
18.7 8 360 175 3.15 3.44 17.02 0 0 3 2
18.1 6 225 105 2.76 3.46 20.22 1 0 3 1
14.3 8 360 245 3.21 3.57 15.84 0 0 3 4
24.4 4 146.7 62 3.69 3.19 20 1 0 4 2
22.8 4 140.8 95 3.92 3.15 22.9 1 0 4 2
19.2 6 167.6 123 3.92 3.44 18.3 1 0 4 4
17.8 6 167.6 123 3.92 3.44 18.9 1 0 4 4
16.4 8 275.8 180 3.07 4.07 17.4 0 0 3 3
17.3 8 275.8 180 3.07 3.73 17.6 0 0 3 3
15.2 8 275.8 180 3.07 3.78 18 0 0 3 3
10.4 8 472 205 2.93 5.25 17.98 0 0 3 4
10.4 8 460 215 3 5.424 17.82 0 0 3 4
14.7 8 440 230 3.23 5.345 17.42 0 0 3 4
32.4 4 78.7 66 4.08 2.2 19.47 1 1 4 1
30.4 4 75.7 52 4.93 1.615 18.52 1 1 4 2
33.9 4 71.1 65 4.22 1.835 19.9 1 1 4 1
21.5 4 120.1 97 3.7 2.465 20.01 1 0 3 1
15.5 8 318 150 2.76 3.52 16.87 0 0 3 2
15.2 8 304 150 3.15 3.435 17.3 0 0 3 2
13.3 8 350 245 3.73 3.84 15.41 0 0 3 4
19.2 8 400 175 3.08 3.845 17.05 0 0 3 2
27.3 4 79 66 4.08 1.935 18.9 1 1 4 1
26 4 120.3 91 4.43 2.14 16.7 0 1 5 2
30.4 4 95.1 113 3.77 1.513 16.9 1 1 5 2
15.8 8 351 264 4.22 3.17 14.5 0 1 5 4
19.7 6 145 175 3.62 2.77 15.5 0 1 5 6
15 8 301 335 3.54 3.57 14.6 0 1 5 8
21.4 4 121 109 4.11 2.78 18.6 1 1 4 2
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