regular_sampling_scheme {island} | R Documentation |
c/e rates for a regular sampling scheme
Description
regular_sampling_scheme
estimates colonization and extinction rates
for a community or groups in a community.
NLL_rss
returns the Negative
Log-Likelihood of a pair of colonization and extinction rates for a regular
sampling scheme.
Usage
regular_sampling_scheme(
x,
vector,
level = NULL,
n = NULL,
step = NULL,
CI = FALSE
)
NLL_rss(x, vector, c, e)
Arguments
x |
A single dataset. |
vector |
A vector indicating the columns with presence-absence data. |
level |
The name of the column that contain groups used to subset them and calculate their colonization and extinction rates. |
n |
Minimal number of rows for each group. |
step |
Accuracy to calculate the c_e pairs with. |
CI |
Logical. Should confidence intervals be returned? |
c |
A colonization rate. |
e |
An extinction rate. |
Details
The confidence intervals are calculated with a binary search seeded with the hessian of the estimated rates.
Value
regular_sampling_scheme
returns a dataframe with colonization and extinction rates along with their
lower and upper confidence intervals (optional), for each group if
specified, and its number of rows and NLL.
NLL_rss
gives the NLL for a dataframe given a specific c and e.
See Also
irregular_single_dataset
,
irregular_multiple_datasets
Examples
regular_sampling_scheme(alonso15[[1]], 3:6)
regular_sampling_scheme(alonso15[[1]], 3:6, "Guild", n = 5)
regular_sampling_scheme(alonso15[[1]], 3:6, "Guild", n = 5, CI = TRUE)
NLL_rss(alonso15[[1]], 3:6, 0.52, 0.39)