Chapter 03: R File Operations and built-in datasets
蔡有為
2015年7月9日
R如何匯入資料檔
- 使用內建資料，下例使用Anderson’s Iris data set (https://zh.wikipedia.org/wiki/%E5%AE%89%E5%BE%B7%E6%A3%AE%E9%B8%A2%E5%B0%BE%E8%8A%B1%E5%8D%89%E6%95%B0%E6%8D%AE%E9%9B%86)
data("iris") #將iris資料集載入Global Environment成為一個DataFrame
iris #列出iris資料集的所有欄位和每一筆資料## 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 setosa
## 7 4.6 3.4 1.4 0.3 setosa
## 8 5.0 3.4 1.5 0.2 setosa
## 9 4.4 2.9 1.4 0.2 setosa
## 10 4.9 3.1 1.5 0.1 setosa
## 11 5.4 3.7 1.5 0.2 setosa
## 12 4.8 3.4 1.6 0.2 setosa
## 13 4.8 3.0 1.4 0.1 setosa
## 14 4.3 3.0 1.1 0.1 setosa
## 15 5.8 4.0 1.2 0.2 setosa
## 16 5.7 4.4 1.5 0.4 setosa
## 17 5.4 3.9 1.3 0.4 setosa
## 18 5.1 3.5 1.4 0.3 setosa
## 19 5.7 3.8 1.7 0.3 setosa
## 20 5.1 3.8 1.5 0.3 setosa
## 21 5.4 3.4 1.7 0.2 setosa
## 22 5.1 3.7 1.5 0.4 setosa
## 23 4.6 3.6 1.0 0.2 setosa
## 24 5.1 3.3 1.7 0.5 setosa
## 25 4.8 3.4 1.9 0.2 setosa
## 26 5.0 3.0 1.6 0.2 setosa
## 27 5.0 3.4 1.6 0.4 setosa
## 28 5.2 3.5 1.5 0.2 setosa
## 29 5.2 3.4 1.4 0.2 setosa
## 30 4.7 3.2 1.6 0.2 setosa
## 31 4.8 3.1 1.6 0.2 setosa
## 32 5.4 3.4 1.5 0.4 setosa
## 33 5.2 4.1 1.5 0.1 setosa
## 34 5.5 4.2 1.4 0.2 setosa
## 35 4.9 3.1 1.5 0.2 setosa
## 36 5.0 3.2 1.2 0.2 setosa
## 37 5.5 3.5 1.3 0.2 setosa
## 38 4.9 3.6 1.4 0.1 setosa
## 39 4.4 3.0 1.3 0.2 setosa
## 40 5.1 3.4 1.5 0.2 setosa
## 41 5.0 3.5 1.3 0.3 setosa
## 42 4.5 2.3 1.3 0.3 setosa
## 43 4.4 3.2 1.3 0.2 setosa
## 44 5.0 3.5 1.6 0.6 setosa
## 45 5.1 3.8 1.9 0.4 setosa
## 46 4.8 3.0 1.4 0.3 setosa
## 47 5.1 3.8 1.6 0.2 setosa
## 48 4.6 3.2 1.4 0.2 setosa
## 49 5.3 3.7 1.5 0.2 setosa
## 50 5.0 3.3 1.4 0.2 setosa
## 51 7.0 3.2 4.7 1.4 versicolor
## 52 6.4 3.2 4.5 1.5 versicolor
## 53 6.9 3.1 4.9 1.5 versicolor
## 54 5.5 2.3 4.0 1.3 versicolor
## 55 6.5 2.8 4.6 1.5 versicolor
## 56 5.7 2.8 4.5 1.3 versicolor
## 57 6.3 3.3 4.7 1.6 versicolor
## 58 4.9 2.4 3.3 1.0 versicolor
## 59 6.6 2.9 4.6 1.3 versicolor
## 60 5.2 2.7 3.9 1.4 versicolor
## 61 5.0 2.0 3.5 1.0 versicolor
## 62 5.9 3.0 4.2 1.5 versicolor
## 63 6.0 2.2 4.0 1.0 versicolor
## 64 6.1 2.9 4.7 1.4 versicolor
## 65 5.6 2.9 3.6 1.3 versicolor
## 66 6.7 3.1 4.4 1.4 versicolor
## 67 5.6 3.0 4.5 1.5 versicolor
## 68 5.8 2.7 4.1 1.0 versicolor
## 69 6.2 2.2 4.5 1.5 versicolor
## 70 5.6 2.5 3.9 1.1 versicolor
## 71 5.9 3.2 4.8 1.8 versicolor
## 72 6.1 2.8 4.0 1.3 versicolor
## 73 6.3 2.5 4.9 1.5 versicolor
## 74 6.1 2.8 4.7 1.2 versicolor
## 75 6.4 2.9 4.3 1.3 versicolor
## 76 6.6 3.0 4.4 1.4 versicolor
## 77 6.8 2.8 4.8 1.4 versicolor
## 78 6.7 3.0 5.0 1.7 versicolor
## 79 6.0 2.9 4.5 1.5 versicolor
## 80 5.7 2.6 3.5 1.0 versicolor
## 81 5.5 2.4 3.8 1.1 versicolor
## 82 5.5 2.4 3.7 1.0 versicolor
## 83 5.8 2.7 3.9 1.2 versicolor
## 84 6.0 2.7 5.1 1.6 versicolor
## 85 5.4 3.0 4.5 1.5 versicolor
## 86 6.0 3.4 4.5 1.6 versicolor
## 87 6.7 3.1 4.7 1.5 versicolor
## 88 6.3 2.3 4.4 1.3 versicolor
## 89 5.6 3.0 4.1 1.3 versicolor
## 90 5.5 2.5 4.0 1.3 versicolor
## 91 5.5 2.6 4.4 1.2 versicolor
## 92 6.1 3.0 4.6 1.4 versicolor
## 93 5.8 2.6 4.0 1.2 versicolor
## 94 5.0 2.3 3.3 1.0 versicolor
## 95 5.6 2.7 4.2 1.3 versicolor
## 96 5.7 3.0 4.2 1.2 versicolor
## 97 5.7 2.9 4.2 1.3 versicolor
## 98 6.2 2.9 4.3 1.3 versicolor
## 99 5.1 2.5 3.0 1.1 versicolor
## 100 5.7 2.8 4.1 1.3 versicolor
## 101 6.3 3.3 6.0 2.5 virginica
## 102 5.8 2.7 5.1 1.9 virginica
## 103 7.1 3.0 5.9 2.1 virginica
## 104 6.3 2.9 5.6 1.8 virginica
## 105 6.5 3.0 5.8 2.2 virginica
## 106 7.6 3.0 6.6 2.1 virginica
## 107 4.9 2.5 4.5 1.7 virginica
## 108 7.3 2.9 6.3 1.8 virginica
## 109 6.7 2.5 5.8 1.8 virginica
## 110 7.2 3.6 6.1 2.5 virginica
## 111 6.5 3.2 5.1 2.0 virginica
## 112 6.4 2.7 5.3 1.9 virginica
## 113 6.8 3.0 5.5 2.1 virginica
## 114 5.7 2.5 5.0 2.0 virginica
## 115 5.8 2.8 5.1 2.4 virginica
## 116 6.4 3.2 5.3 2.3 virginica
## 117 6.5 3.0 5.5 1.8 virginica
## 118 7.7 3.8 6.7 2.2 virginica
## 119 7.7 2.6 6.9 2.3 virginica
## 120 6.0 2.2 5.0 1.5 virginica
## 121 6.9 3.2 5.7 2.3 virginica
## 122 5.6 2.8 4.9 2.0 virginica
## 123 7.7 2.8 6.7 2.0 virginica
## 124 6.3 2.7 4.9 1.8 virginica
## 125 6.7 3.3 5.7 2.1 virginica
## 126 7.2 3.2 6.0 1.8 virginica
## 127 6.2 2.8 4.8 1.8 virginica
## 128 6.1 3.0 4.9 1.8 virginica
## 129 6.4 2.8 5.6 2.1 virginica
## 130 7.2 3.0 5.8 1.6 virginica
## 131 7.4 2.8 6.1 1.9 virginica
## 132 7.9 3.8 6.4 2.0 virginica
## 133 6.4 2.8 5.6 2.2 virginica
## 134 6.3 2.8 5.1 1.5 virginica
## 135 6.1 2.6 5.6 1.4 virginica
## 136 7.7 3.0 6.1 2.3 virginica
## 137 6.3 3.4 5.6 2.4 virginica
## 138 6.4 3.1 5.5 1.8 virginica
## 139 6.0 3.0 4.8 1.8 virginica
## 140 6.9 3.1 5.4 2.1 virginica
## 141 6.7 3.1 5.6 2.4 virginica
## 142 6.9 3.1 5.1 2.3 virginica
## 143 5.8 2.7 5.1 1.9 virginica
## 144 6.8 3.2 5.9 2.3 virginica
## 145 6.7 3.3 5.7 2.5 virginica
## 146 6.7 3.0 5.2 2.3 virginica
## 147 6.3 2.5 5.0 1.9 virginica
## 148 6.5 3.0 5.2 2.0 virginica
## 149 6.2 3.4 5.4 2.3 virginica
## 150 5.9 3.0 5.1 1.8 virginica- 匯入CSV
mydataset <- read.csv("c:/users/Wade/OneDrive/Statistics/RealEstate/A_lvr_land_A.csv", header = TRUE, sep = ",") #匯入台北市房地產時價登錄的CSV檔，並置入名為mydataset的dataframe中- 匯入SPSS (.sav)(read.spss函式不支援中文，如果遇到.sav檔中有中文則必須要從SPSS中匯出成CSV後再從R把CSV匯入)
#install.packages("foreign") #如果之前沒有安裝過，要先安裝foreign套件
require(foreign) #載入foreign套件## Loading required package: foreignmydataset <- read.spss("c:/users/Wade/OneDrive/Statistics/基礎統計分析/SPSS_SAV/3.2.sav") #使用foreign套件中的read.spss函式讀取侯老師提供的3.2.sav資料檔- 匯入Excel (.xlsx)(read.xlsx的效能不好，建議從Excel先轉成CSV後再匯入R)
#install.packages("xlsx") #如果之前沒有安裝過，要先安裝xlsx套件
require(xlsx) #載入xlsx套件## Loading required package: xlsx
## Loading required package: rJava
## Loading required package: xlsxjarsmydataset <- read.xlsx("c:/users/Wade/OneDrive/Statistics/MSFT.xlsx", sheetIndex = 1) #使用xlsx套件中的read.xlsx函式讀取Excel檔案中的第一個工作表使用R內建的資料集
- 很多人學R都是看上了R有數量龐大的套件，而很多套件為了讓人容易學習和練習，都有內建資料集。 data()這個function就可以列出某個package中有那些內建dataset，如:
data(package="ggplot2")從上面可以看出ggplot2套件內建了以上8個datasets。
- 如果不加參數，直接下data()，則會列出以下這些R的datasets套件裡內建的資料集:
data()- 也可以查看所有可用套件中的資料集
data(package = .packages(all.available = TRUE))## Warning in data(package = .packages(all.available = TRUE)): datasets have
## been moved from package 'base' to package 'datasets'## Warning in data(package = .packages(all.available = TRUE)): datasets have
## been moved from package 'stats' to package 'datasets'Data sets in package !￥boot!|: acme Monthly Excess Returns aids Delay in AIDS Reporting in England and Wales aircondit Failures of Air-conditioning Equipment aircondit7 Failures of Air-conditioning Equipment amis Car Speeding and Warning Signs aml Remission Times for Acute Myelogenous Leukaemia beaver Beaver Body Temperature Data bigcity Population of U.S. Cities brambles Spatial Location of Bramble Canes breslow Smoking Deaths Among Doctors calcium Calcium Uptake Data cane Sugar-cane Disease Data capability Simulated Manufacturing Process Data catsM Weight Data for Domestic Cats cav Position of Muscle Caveolae cd4 CD4 Counts for HIV-Positive Patients cd4.nested Nested Bootstrap of cd4 data channing Channing House Data city Population of U.S. Cities claridge Genetic Links to Left-handedness cloth Number of Flaws in Cloth co.transfer Carbon Monoxide Transfer coal Dates of Coal Mining Disasters darwin Darwin's Plant Height Differences dogs Cardiac Data for Domestic Dogs downs.bc Incidence of Down's Syndrome in British Columbia ducks Behavioral and Plumage Characteristics of Hybrid Ducks fir Counts of Balsam-fir Seedlings frets Head Dimensions in Brothers grav Acceleration Due to Gravity gravity Acceleration Due to Gravity hirose Failure Time of PET Film islay Jura Quartzite Azimuths on Islay manaus Average Heights of the Rio Negro river at Manaus melanoma Survival from Malignant Melanoma motor Data from a Simulated Motorcycle Accident neuro Neurophysiological Point Process Data nitrofen Toxicity of Nitrofen in Aquatic Systems nodal Nodal Involvement in Prostate Cancer nuclear Nuclear Power Station Construction Data paulsen Neurotransmission in Guinea Pig Brains poisons Animal Survival Times polar Pole Positions of New Caledonian Laterites remission Cancer Remission and Cell Activity salinity Water Salinity and River Discharge survival Survival of Rats after Radiation Doses tau Tau Particle Decay Modes tuna Tuna Sighting Data urine Urine Analysis Data wool Australian Relative Wool Prices Data sets in package !￥cluster!|: agriculture European Union Agricultural Workforces animals Attributes of Animals chorSub Subset of C-horizon of Kola Data flower Flower Characteristics plantTraits Plant Species Traits Data pluton Isotopic Composition Plutonium Batches ruspini Ruspini Data votes.repub Votes for Republican Candidate in Presidential Elections xclara Bivariate Data Set with 3 Clusters Data sets in package !￥colorspace!|: USSouthPolygon Polygon for County Map of US South States: Alabama, Georgia, and South Carolina 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 Data sets in package !￥dichromat!|: dalton Effects of Daltonism (Red-Green Color Blindness) dalton.colors (dalton) Effects of Daltonism (Red-Green Color Blindness) Data sets in package !￥earth!|: etitanic Titanic data with incomplete cases removed ozone1 Ozone readings in Los Angeles with incomplete cases removed Data sets in package !￥ggplot2!|: diamonds Prices of 50,000 round cut diamonds economics US economic time series. midwest Midwest demographics. movies Movie information and user ratings from IMDB.com. mpg Fuel economy data from 1999 and 2008 for 38 popular models of car msleep An updated and expanded version of the mammals sleep dataset. presidential Terms of 10 presidents from Eisenhower to Bush W. seals Vector field of seal movements. Data sets in package !￥lattice!|: barley Yield data from a Minnesota barley trial environmental Atmospheric environmental conditions in New York City ethanol Engine exhaust fumes from burning ethanol melanoma Melanoma skin cancer incidence singer Heights of New York Choral Society singers Data sets in package !￥MASS!|: Aids2 Australian AIDS Survival Data Animals Brain and Body Weights for 28 Species Boston Housing Values in Suburbs of Boston Cars93 Data from 93 Cars on Sale in the USA in 1993 Cushings Diagnostic Tests on Patients with Cushing's Syndrome DDT DDT in Kale GAGurine Level of GAG in Urine of Children Insurance Numbers of Car Insurance claims Melanoma Survival from Malignant Melanoma OME Tests of Auditory Perception in Children with OME Pima.te Diabetes in Pima Indian Women Pima.tr Diabetes in Pima Indian Women Pima.tr2 Diabetes in Pima Indian Women Rabbit Blood Pressure in Rabbits Rubber Accelerated Testing of Tyre Rubber SP500 Returns of the Standard and Poors 500 Sitka Growth Curves for Sitka Spruce Trees in 1988 Sitka89 Growth Curves for Sitka Spruce Trees in 1989 Skye AFM Compositions of Aphyric Skye Lavas Traffic Effect of Swedish Speed Limits on Accidents UScereal Nutritional and Marketing Information on US Cereals UScrime The Effect of Punishment Regimes on Crime Rates VA Veteran's Administration Lung Cancer Trial abbey Determinations of Nickel Content accdeaths Accidental Deaths in the US 1973-1978 anorexia Anorexia Data on Weight Change bacteria Presence of Bacteria after Drug Treatments beav1 Body Temperature Series of Beaver 1 beav2 Body Temperature Series of Beaver 2 biopsy Biopsy Data on Breast Cancer Patients birthwt Risk Factors Associated with Low Infant Birth Weight cabbages Data from a cabbage field trial caith Colours of Eyes and Hair of People in Caithness cats Anatomical Data from Domestic Cats cement Heat Evolved by Setting Cements chem Copper in Wholemeal Flour coop Co-operative Trial in Analytical Chemistry cpus Performance of Computer CPUs crabs Morphological Measurements on Leptograpsus Crabs deaths Monthly Deaths from Lung Diseases in the UK drivers Deaths of Car Drivers in Great Britain 1969-84 eagles Foraging Ecology of Bald Eagles epil Seizure Counts for Epileptics farms Ecological Factors in Farm Management fgl Measurements of Forensic Glass Fragments forbes Forbes' Data on Boiling Points in the Alps galaxies Velocities for 82 Galaxies gehan Remission Times of Leukaemia Patients genotype Rat Genotype Data geyser Old Faithful Geyser Data gilgais Line Transect of Soil in Gilgai Territory hills Record Times in Scottish Hill Races housing Frequency Table from a Copenhagen Housing Conditions Survey immer Yields from a Barley Field Trial leuk Survival Times and White Blood Counts for Leukaemia Patients mammals Brain and Body Weights for 62 Species of Land Mammals mcycle Data from a Simulated Motorcycle Accident menarche Age of Menarche in Warsaw michelson Michelson's Speed of Light Data minn38 Minnesota High School Graduates of 1938 motors Accelerated Life Testing of Motorettes muscle Effect of Calcium Chloride on Muscle Contraction in Rat Hearts newcomb Newcomb's Measurements of the Passage Time of Light nlschools Eighth-Grade Pupils in the Netherlands npk Classical N, P, K Factorial Experiment npr1 US Naval Petroleum Reserve No. 1 data oats Data from an Oats Field Trial painters The Painter's Data of de Piles petrol N. L. Prater's Petrol Refinery Data phones Belgium Phone Calls 1950-1973 quine Absenteeism from School in Rural New South Wales road Road Accident Deaths in US States rotifer Numbers of Rotifers by Fluid Density ships Ships Damage Data shoes Shoe wear data of Box, Hunter and Hunter shrimp Percentage of Shrimp in Shrimp Cocktail shuttle Space Shuttle Autolander Problem snails Snail Mortality Data steam The Saturated Steam Pressure Data stormer The Stormer Viscometer Data survey Student Survey Data synth.te Synthetic Classification Problem synth.tr Synthetic Classification Problem topo Spatial Topographic Data waders Counts of Waders at 15 Sites in South Africa whiteside House Insulation: Whiteside's Data wtloss Weight Loss Data from an Obese Patient Data sets in package !￥Matrix!|: CAex Albers' example Matrix with "Difficult" Eigen Factorization KNex Koenker-Ng Example Sparse Model Matrix and Response Vector USCounties USCounties Contiguity Matrix Data sets in package !￥mgcv!|: columb Reduced version of Columbus OH crime data columb.polys Reduced version of Columbus OH crime data Data sets in package !￥nlme!|: Alfalfa Split-Plot Experiment on Varieties of Alfalfa Assay Bioassay on Cell Culture Plate BodyWeight Rat weight over time for different diets Cefamandole Pharmacokinetics of Cefamandole Dialyzer High-Flux Hemodialyzer Earthquake Earthquake Intensity Fatigue Cracks caused by metal fatigue Gasoline Refinery yield of gasoline Glucose Glucose levels over time Glucose2 Glucose Levels Following Alcohol Ingestion Gun Methods for firing naval guns IGF Radioimmunoassay of IGF-I Protein Machines Productivity Scores for Machines and Workers MathAchSchool School demographic data for MathAchieve MathAchieve Mathematics achievement scores Meat Tenderness of meat Milk Protein content of cows' milk Muscle Contraction of heart muscle sections Nitrendipene Assay of nitrendipene Oats Split-plot Experiment on Varieties of Oats Orthodont Growth curve data on an orthdontic measurement Ovary Counts of Ovarian Follicles Oxboys Heights of Boys in Oxford Oxide Variability in Semiconductor Manufacturing PBG Effect of Phenylbiguanide on Blood Pressure Phenobarb Phenobarbitol Kinetics Pixel X-ray pixel intensities over time Quinidine Quinidine Kinetics Rail Evaluation of Stress in Railway Rails RatPupWeight The weight of rat pups Relaxin Assay for Relaxin Remifentanil Pharmacokinetics of remifentanil Soybean Growth of soybean plants Spruce Growth of Spruce Trees Tetracycline1 Pharmacokinetics of tetracycline Tetracycline2 Pharmacokinetics of tetracycline Wafer Modeling of Analog MOS Circuits Wheat Yields by growing conditions Wheat2 Wheat Yield Trials bdf Language scores ergoStool Ergometrics experiment with stool types Data sets in package !￥plotrix!|: death_reg Death registrations from 1996 to 2010 soils Soil texture data from 125 soils Data sets in package !￥plyr!|: baseball Yearly batting records for all major league baseball players ozone Monthly ozone measurements over Central America. Data sets in package !￥RCurl!|: mimeTypeExtensions Mapping from extension to MIME type Data sets in package !￥reshape2!|: french_fries Sensory data from a french fries experiment. smiths Demo data describing the Smiths. tips Tipping data Data sets in package !￥rpart!|: car.test.frame Automobile Data from 'Consumer Reports' 1990 car90 Automobile Data from 'Consumer Reports' 1990 cu.summary Automobile Data from 'Consumer Reports' 1990 kyphosis Data on Children who have had Corrective Spinal Surgery solder Soldering of Components on Printed-Circuit Boards stagec Stage C Prostate Cancer Data sets in package !￥survival!|: aml (leukemia) Acute Myelogenous Leukemia survival data bladder Bladder Cancer Recurrences bladder1 (bladder) Bladder Cancer Recurrences bladder2 (bladder) Bladder Cancer Recurrences cancer NCCTG Lung Cancer Data cgd Chronic Granulotomous Disease data cgd0 (cgd) Chronic Granulotomous Disease data colon Chemotherapy for Stage B/C colon cancer flchain Assay of serum free light chain for 7874 subjects. heart Stanford Heart Transplant data jasa (heart) Stanford Heart Transplant data jasa1 (heart) Stanford Heart Transplant data kidney Kidney catheter data leukemia Acute Myelogenous Leukemia survival data logan Data from the 1972-78 GSS data used by Logan lung NCCTG Lung Cancer Data mgus Monoclonal gammapothy data mgus1 (mgus) Monoclonal gammapothy data mgus2 Monoclonal gammapothy data nwtco Data from the National Wilm's Tumor Study ovarian Ovarian Cancer Survival Data pbc Mayo Clinic Primary Biliary Cirrhosis Data pbcseq (pbc) Mayo Clinic Primary Biliary Cirrhosis, sequential data rats Rat treatment data from Mantel et al rats2 (rats) Rat data from Gail et al. stanford2 More Stanford Heart Transplant data survexp.mn (survexp) Census Data Sets for the Expected Survival and Person Years Functions survexp.us (survexp) Census Data Sets for the Expected Survival and Person Years Functions survexp.usr (survexp) Census Data Sets for the Expected Survival and Person Years Functions tobin Tobin's Tobit data transplant Liver transplant waiting list uspop2 Projected US Population veteran Veterans' Administration Lung Cancer study Data sets in package !￥TeachingDemos!|: USCrimes US Crime Statistics ccc (gps) Sample data downloaded and converted from a GPS unit coin.faces Designs for coin faces for use with plot.rgl.coin evap Data on soil evaporation. h2h (gps) Sample data downloaded and converted from a GPS unit ldsgrowth Growth of The Church of Jesus Christ of Latter-day Saints. outliers Outliers data stork Neyman's Stork data towork (gps) Sample data downloaded and converted from a GPS unit Data sets in package !￥xtable!|: tli Math scores from Texas Assessment of Academic Skills (TAAS)
- 而事實上不需要先下data()，隨時都可以使用內建資料集，例如:
plot(AirPassengers)
R如何匯出資料檔
- 匯出CSV檔案
x <- data.frame(日期 = Sys.Date(), 抽出順序 = 1:6 , 本期大樂透明牌 = sample(1:49, 6, FALSE)) #將三個變數「日期」、「抽出順序」、「本期大樂透明牌」放到名為X的Data Frame中
write.csv(x, "d:/lotto.csv", row.names = FALSE, col.names = TRUE)## Warning in write.csv(x, "d:/lotto.csv", row.names = FALSE, col.names =
## TRUE): attempt to set 'col.names' ignoredR如何儲存/載入RData
- 將R物件儲存成.RData檔案:
save(iris, file = "d:/iris.RData")- 載入.RData檔案:
load("d:/iris.Rdata")