RDocumentation
Moon
Learn R
Search all packages and functions
DSpat (version 0.1.6)
Spatial Modelling for Distance Sampling Data
Description
Fits inhomogeneous Poisson process spatial models to line transect sampling data and provides estimate of abundance within a region.
Copy Link
Copy
Link to current version
Version
Version
0.1.6
0.1.5
0.1.1
0.1.0
Down Chevron
Install
install.packages('DSpat')
Monthly Downloads
40
Version
0.1.6
License
GPL (>= 2)
Maintainer
Jeff Laake
Last Published
December 12th, 2014
Functions in DSpat (0.1.6)
Search functions
DSpat.covariates
Raster covariates study area
integrate.intensity
Integrated intensity of fitted model
dist2line
Compute perpendicular distances and projections onto line
lgcp.correction
Calculate Overdispersion factor for IPP fit via Monte Carlo Integration
sample.points
Sample points within each transect and filter with specified detection function
create.points.by.offset
Create point dataframe offset from line
quadscheme.lt
Create line transect quadrature for spatstat
transect.intensity
Compute expected and observed counts by distance within transect
create.covariate.images
Create a list of covariate images
weeds.lines
Transect lines from Dubbo weed data
LTDataFrame
Creates covariate dataframes
weeds.obs
Observations from Dubbo weed data
dspat
Fits spatial model to distance sampling data
Internal
Internal DSpat functions
project2line
Project points onto line
simCovariates
Simulates covariates for an example in DSpat
simPts
Simulates point process on a rectangular grid
offset.points
Offset points from the line to actual position
weeds.covariates
Covariate grid for Dubbo weed data
DSpat.lines
Example DSpat lines dataframe
DSpat.obs
Observation dataframe for DSpat
create.lines
Create a systematic sample of parallel lines across a grid
simDSpat
Simulate a distance sample from a specified spatial point process
DSpat-package
Spatial modelling package for distance sampling data
lines_to_strips
Convert lines to transects (strips)
weeds
Dubbo weed data
weeds.all
Dubbo weed data with constructed y-coordinate