LuceVolume {nnDiag} | R Documentation |
This data was extracted from the freely available Forest Inventory and Analysis National Program of the USDA Forest Service Database. The coordinates of each subplot are not exact, they have been fuzzed and swapped to meet privacy requirements established by Congress. See pages 10 - 12 in The Forest Inventory and Analysis Database: Database Description and Users Manual Version 4.0 for Phase 2, Revision for more information on the fuzzing and swapping of plot coordinates.
data(LuceVolume)
A data frame containing 671 rows and the following 14 columns:
plt_cn
subp
ref.volume
pred.vol_k1
pred.vol_k5
pred.vol_k10
pred.vol_k15
pred.vol_k18
pred.vol_k22
xAlb
yAlb
tcap_B
tcap_G
tcap_W
USDA Forest Service Forest Inventory and Analysis National Program http://fiatools.fs.fed.us/fiadb-downloads/datamart.html
Bechtold, W.A. and Patterson, P.L. (2005) The Enhanced Forest Inventory and Analysis Program - National Sampling Design and Estimation Procedures.
Forest Inventory and Analysis Program (2009) The Forest Inventory and Analysis Database: Database Description and Users Manual Version 4.0 for Phase 2, Revision 1. http://fia.fs.fed.us/library/database-documentation/draft FIADB_user guide_v4-0_p2_05_27_09_pdf.pdf.