rpdo

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 most recent data from http://research.jisao.washington.edu/pdo/PDO.latest.

Demonstration

library(rpdo)
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")

Installation

To install the latest official release from CRAN

install.packages("rpdo")

See Also

The rsoi package which provides El Nino/Southern Oscillation (ENSO) and Related Climate Indices.

Information

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