download_rain: Download monthly rainfall data for countries
In felixhaass/rainfall: Downloads Monthly Rainfall Data for Individual Countries

Description Usage Arguments Value References Examples

download_rain() downloads monthly rainfall data from the Climate Research Unit at the University of East Anglia (http://www.cru.uea.ac.uk/).

1	download_rain(country = NULL, long = T, delete_raw = T)

`country`	Character vector of ISO3 codes for the countries for which rainfall data is to be downloaded. I suggest using the excellent `countrycode` package to retrieve ISO3 codes from country names.
`long`	Logical. If TRUE, the resulting data frame is a tidy output in which every observation is a country-year month of rainfall data. If FALSE every row is a year with the JAN to DEC monthly values as columns.
`delete_raw`	Logical. Delete local copies of the downloaded CRU files? Defaults to TRUE.

If long == TRUE download_rain() returns a data frame / tibble with the following variables:

iso3c: ISO3 code of a country
YEAR: Year (currently 1901 - 2015)
month: Month (character string of month, JAN - DEC)
month_numeric: Month (numeric, 1-12)
rain: Monthly mean of rainfall in milimeters per month (https://crudata.uea.ac.uk/cru/data/hrg/#info)
MAM, JJA, SON, DJF: seasonal sum
ANN: Annual sum of mean rainfall per month

Harris, I, PD Jones, TJ Osborn & DH Lister (2014) Updated high-resolution grids of monthly climatic observations - the CRU TS3.10 Dataset. International Journal of Climatology 34(3): 623-642.

## Not run: 
# Download rainfall data for the Democratic Republic of the Congo.
rain_drc <- download_rain(country = "COD", long = T, delete_raw = T)


## End(Not run)