TreeRingIndex | R Documentation |
Calculate tree ring index from chronosequence data (year,growth)
TreeRingIndex(ya, spar = 0.8)
ya |
data frame of chronosequence data (year,growth) |
spar |
smoothing parameter of spline curve |
list spline ; fitting parameter of Spline curve , idx ; data.frame(year,TreeRingIndex)
Cook, E., & Peters, K. (1981). The smoothing spline, a new approach to standardising forest interior tree-ring.Trre-ring Bulletin, 41, 45–53.
TreeRingsInterpolation
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.