Description Usage Arguments Author(s) References See Also
Two functions that report the chi-squared statistic, or the log-likelihood of a particular
distribution, given a sample of leaf angles. No need to be called by the user.
Simply use fitdistribution
, which finds the parameters of the distribution
by minimizing either chi-squared or log-likelihood.
1 2 | chisqfit(angles, distribution, distpars=NA, ...)
loglikfit(angles, distribution, distpars=NA, ...)
|
angles |
Vector of angles (0-90 degrees). |
distribution |
One of the nine distributions. See |
distpars |
Vector of parameters |
... |
Further parameters passed to ftheta. |
Remko Duursma
Wang W.M., Li Z.L. & Su H.B. (2007). Comparison of leaf angle distribution functions: Effects on extinction coefficient and fraction of sunlit foliage. Agricultural and Forest Meteorology, 143, 106-122.
fitdistribution
, fitalldistributions
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