ImportRW: Import a ring-width file
In mbask/treeglia: Stem-analysis on tree cross-sections

Description Usage Arguments Details Value Note Author(s) See Also

Loads a csv text file containing the ring widths measured on tree cross-sections.

1	ImportRW(filename)

filename

a string giving the name of the file to load

Ring-widths and their calendar years, as well the heights of the cross-sections they were measured from must be stored in a csv file. Ring-widths will be ordered in columns, from the lowest cross-section, to the highest (nearest to tree tip) cross-section. The first row will hold cross-sections heights (in m). The first column will hold the calendar years whose ring refer. Csv files can be created through any spreadsheet program. As an example of what a future ring-width csv file might look in a spreadsheet consider the following:

	0.0	1.30	3.00	5.00
1990	1234
1991	1234
1992	1234	4232
1993	1234	4232	353
1994	1234	4232	353
1995	1234	4232	353
1996	1234	4232	353	3567
1997	1234	4232	353	3567
1998	1234	4232	353	3567

Returns a data.frame object holding the ring-widths. Calendar years are coded as row names, and can be accessed via rownames(). Cross-section heights along the stem are coded column names, they can be accessed via colnames() and converted to numeric values via as.numeric().

Decimals should be dot-separated.

Marco Bascietto

ExportFile

mbask/treeglia documentation built on May 21, 2019, 2:26 p.m.