openintro (version 2.0.0)

stocks_18: Monthly Returns for a few stocks

Description

Monthly return data for a few stocks, which covers stock prices from November 2015 through October 2018.

Usage

stocks_18

Format

A data frame with 36 observations on the following 3 variables.

date

First day of the month corresponding to the returns.

goog

Google stock price change.

cat

Caterpillar stock price change.

xom

Exxon Mobil stock price change.

Examples

# NOT RUN {
d <- stocks_18
dim(d)
apply(d[, 2:3], 2, mean)
apply(d[, 2:3], 2, sd)

# }