sampledatasets: A collection of Sample DataSets"

In sampledatasets: A Collection of Sample Datasets

knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>"
)

library(sampledatasets)

library(ggplot2)

library(dplyr)

Introduction

The sampledatasets package provides a diverse collection of sample datasets, covering various fields such as automotive performance and safety, historical demographics, socioeconomic indicators, and recreational data. This package serves as a valuable resource for researchers and analysts seeking to perform analyses and derive insights from classic datasets in R.

Dataset Suffixes

Each dataset includes a suffix indicating its format to help users identify the data type easily. The suffixes include:

df: A standard data frame. tbl: A tibble data frame.

Example Datasets

The sampledatasets package includes the following datasets:

• mtcars_df: A data frame containing motor trend car data, including miles per gallon, horsepower, and weight.

• swiss_df: A data frame of Swiss socioeconomic data, including fertility rates and education levels.

• cars_df: A data frame of car speed and stopping distances. arbuthnot_tbl: A tibble of historical birth records by year, including counts of boys and girls.

• cards_tbl: A tibble representing a standard 52-card deck, including values, suits, and colors.

All datasets in sampledatasets retain their original structure and content, ensuring integrity and reliability for analyses.

Visualizing Data with ggplot2

To demonstrate the datasets, here are a few visualization examples using the ggplot2 package.

1. Visualization of Miles Per Gallon in Cars

# Example: Scatter plot of miles per gallon vs weight
mtcars_df %>%
  ggplot(aes(x = wt, y = mpg, color = cyl)) +
  geom_point(alpha = 0.7) +
  labs(
    title = "Miles Per Gallon vs Weight",
    x = "Weight (1000 lbs)",
    y = "Miles per Gallon",
    color = "Cylinders"
  ) +
  theme_minimal()

1. Distribution of Fertility Rates in Swiss Data

# Example: Histogram of fertility rates
swiss_df %>%
  ggplot(aes(x = Fertility)) +
  geom_histogram(binwidth = 5, fill = "blue", color = "black", alpha = 0.7) +
  labs(
    title = "Distribution of Fertility Rates in Switzerland",
    x = "Fertility Rate",
    y = "Count"
  ) +
  theme_minimal()

Conclusion

The sampledatasets package provides an extensive collection of datasets that are useful for a wide range of analyses. The suffixes in dataset names make it easy to identify the type of data, ensuring an efficient analysis process.

sampledatasets documentation built on April 4, 2025, 2:36 a.m.