This function reads in a Tucson (decadal) format file of ring widths (.rwl).
Usage
read.rwl(fname, header=NULL, long=FALSE)
Arguments
fname
a character vector giving the file name of the rwl file.
header
logical flag indicating whether the file has a header.
If NULL then the function will attempt to determine if a header exists
long
logical flag indicating whether dates in file span 0 CE and
therefore use negative numbers.If true only the first 7 characters can be
used for series ids. If FALSE then series ids can be up to 8
characters.
Value
A data.frame with the series in columns and the years as rows. The
series ids are the column names and the years are the row names.
Details
This reads in a standard rwl file as defined according to the standards of
the ITRDB at http://www.ncdc.noaa.gov/paleo/treeinfo.html. Despite
the standards at the ITRDB, this occasionally fails due to formatting
problems.