在本文中，我们将深入探讨 data() 函数究竟是什么，以及它在 R 编程语言 中是如何工作的。我们还将一起查看 R 中所有可用的数据集。
R 语言中的 data() 函数
在 R 中，INLINECODE41eda9f1 函数用于加载那些随 R 包预装的数据集，或者已经明确安装到您的 R 环境中的数据集。包含这些数据集通常是为了为用户提供示例数据，以便练习数据分析、可视化和统计建模。INLINECODE0b1e5a15 函数允许我们将这些数据集加载到当前的 R 会话中进行探索和分析。
data() 函数的基本语法如下：
data(dataset_name)
这里的 dataset_name 指的是您想要加载的数据集的名称。
R
CODEBLOCK_94b309df
输出：
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Data sets in package ‘caret’:
GermanCredit German Credit Data
Sacramento Sacramento CA Home Prices
absorp (tecator) Fat, Water and Protein Content of Meat Samples
bbbDescr (BloodBrain) Blood Brain Barrier Data
cars Kelly Blue Book resale data for 2005 model year
GM cars
cox2Class (cox2) COX-2 Activity Data
cox2Descr (cox2) COX-2 Activity Data
cox2IC50 (cox2) COX-2 Activity Data
dhfr Dihydrofolate Reductase Inhibitors Data
endpoints (tecator) Fat, Water and Protein Content of Meat Samples
fattyAcids (oil) Fatty acid composition of commercial oils
logBBB (BloodBrain) Blood Brain Barrier Data
mdrrClass (mdrr) Multidrug Resistance Reversal (MDRR) Agent Data
mdrrDescr (mdrr) Multidrug Resistance Reversal (MDRR) Agent Data
oilType (oil) Fatty acid composition of commercial oils
potteryClass (pottery) Pottery from Pre-Classical Sites in Italy
scat Morphometric Data on Scat
scat_orig (scat) Morphometric Data on Scat
segmentationData Cell Body Segmentation
Data sets in package ‘circular’:
fisherB1 B.1 Arrival times at an intensive care unit
fisherB10 B.10 Directions of desert ants
fisherB10c B.10 Directions of desert ants
fisherB11 B.11 Movements of sea stars
fisherB11c B.11 Movements of sea stars
fisherB12 B.12: Vanishing directions of homing pigeons
fisherB12c B.12: Vanishing directions of homing pigeons
fisherB13 B.13: Orientations of termite mounds
fisherB13c B.13: Orientations of termite mounds
fisherB18 B.18 Wind direction and ozone concentration.
fisherB18c B.18 Wind direction and ozone concentration.
fisherB1c B.1 Arrival times at an intensive care unit
fisherB2 B.2 Measurements of long-axis orientation of 133
feldspar laths in basalt
fisherB20 B.20 Movements of blue periwinkles.
fisherB20c B.20 Movements of blue periwinkles.
fisherB2c B.2 Measurements of long-axis orientation of 133
feldspar laths in basalt
fisherB3 B.3 Movements of turtles
fisherB3c B.3 Movements of turtles
fisherB4 B.4 Directional preferences of starhead
topminnows
fisherB4c B.4 Directional preferences of starhead
topminnows
fisherB5 B.5 Measurements of long-axis orientation of 164
feldspar laths in basalt
fisherB5c B.5 Measurements of long-axis orientation of 164
feldspar laths in basalt
fisherB6 B.6 Cross-bed azimuths of palaeocurrents
fisherB6c B.6 Cross-bed azimuths of palaeocurrents
fisherB7 B.7 Movements of ants
fisherB7c B.7 Movements of ants
fisherB8 B.8 Orientations of pebbles
fisherB8c B.8 Orientations of pebbles
fisherB9 B.9 Dance directions of bees
fisherB9c B.9 Dance directions of bees
fisherB9direction (fisherB9)
B.9 Dance directions of bees
fisherB9frequency (fisherB9)
B.9 Dance directions of bees
ncfrog Northern Cricket Frog
ncfrog.rad (ncfrog) Northern Cricket Frog
pigeons Initial orientation of displaced homing pigeons
rao.table Table for Rao‘s Spacing Test of Uniformity
swallows Orientation of juvenile barn swallows
turtles Arrival directions of displaced sea turtles
wind Col De La Roa wind direction
x.coope (coope) Coope dataset
y.coope (coope) Coope dataset
Data sets in package ‘datasets’:
AirPassengers Monthly Airline Passenger Numbers 1949-1960
BJsales