mrds: compute.Nht – R documentation

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compute.Nht

Horvitz-Thompson estimates 1/p_i or s_i/p_i

Description

Compute individual components of Horvitz-Thompson abundance estimate in covered region for a particular subset of the data depending on value of group = TRUE (do group abundance); FALSE(do individual abundance)

Usage

compute.Nht(pdot, group = TRUE, size = NULL)

Arguments

`pdot`	vector of estimated detection probabilities
`group`	if TRUE (do group abundance); FALSE(do individual abundance)
`size`	vector of group size values for clustered populations

Value

vector of H-T components for abundance estimate

Note

Internal function called by covered.region.dht

Author(s)

Jeff Laake

mrds

Mark-Recapture Distance Sampling

v2.2.4

GPL (>= 2)

Authors

Jeff Laake <jeff.laake@noaa.gov>, David Borchers <dlb@st-and.ac.uk>, Len Thomas <len.thomas@st-and.ac.uk>, David Miller <dave@ninepointeightone.net> and Jon Bishop

Initial release