Pacific Decadal Oscillation Index Data.

rpdo

rpdo has been superseded by the rsoi package which includes the historical and most recent monthly PDO index values together with related climate indices.

rpdo is an R data package of monthly Pacific Decadal Oscillation (PDO) index values from January 1900 to September 2018.

The function pdo_download() scrapes the data from the no longer updated http://research.jisao.washington.edu/pdo/PDO.latest.

Demonstration

library(rpdo)
#> rpdo has been superseded by rsoi
library(ggplot2)

data <- rpdo::pdo

data <- subset(data, data$Month == 1)

ggplot(data = data, aes(x = Year, y = PDO)) +
  geom_smooth(span = 0.1, se = FALSE, color = "black", method = "loess") +
  geom_point() +
  ylab("January PDO Index")
#> `geom_smooth()` using formula = 'y ~ x'

Installation

To install the latest release from CRAN

install.packages("rpdo")

To install the developmental version from GitHub

# install.packages("remotes")
remotes::install_github("poissonconsulting/rpdo")

Information

For more information see http://research.jisao.washington.edu/pdo/PDO.latest.

Contribution

Please report any issues.

Pull requests are always welcome.

Code of Conduct

Please note that the rpdo project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.