Downloads and parses the latest zipped (numbered) version of the ITRDB.
This function includes improvements to the
read_crn function from the
dplR library. The principle changes are better parsing of metadata, and support
for the Schweingruber-type Tucson format. Chronologies that are unable to be read
are reported to the user.
A character string indicating where raw downloaded files should be put. The directory will be created if missing. Defaults to './RAW/ITRDB/'.
If a download already exists, should a new one be created? Defaults to FALSE.
A data.table containing all of the ITRDB data.