Fit Continuous-Time Correlated Random Walk Models to Animal Movement Data

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Documentation for package ‘crawl’ version 2.2.1

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crawl-package Fit Continuous-Time Correlated Random Walk Models to Animal Movement Data
aic.crw Calculates AIC for all objects of class crwFit listed as arguments
argosDiag2Cov Tranform Argos diagnostic data to covariance matrix form
as.flat 'Flattening' a list-form crwPredict object into a data.frame
beardedSeals Bearded Seal Location Data
check_csv Start a shiny app to check data stored in a .csv file for model fitting with 'crwMLE' function.
cond_sim Simulate possible path points conditioned on fit
crawl Fit Continuous-Time Correlated Random Walk Models to Animal Movement Data
crwMLE Fit Continuous-Time Correlated Random Walk Models to Animal Telemetry Data
crwN2ll -2 * log-likelihood for CTCRW models
crwPostIS Simulate a value from the posterior distribution of a CTCRW model
crwPredict Predict animal locations and velocities using a fitted CTCRW model and calculate measurement error fit statistics
crwPredictPlot Plot CRW predicted object
crwSamplePar Create a weighted importance sample for posterior predictive track simulation.
crwSimulator Construct a posterior simulation object for the CTCRW state vectors
crw_as_sf Coerce to sf/sfc object
crw_as_sf.crwIS Coerce to sf/sfc object
crw_as_sf.crwPredict Coerce to sf/sfc object
crw_as_tibble Coerce crawl objects (crwIS and crwPredict) to tibbles
crw_as_tibble.crwIS Coerce crawl objects (crwIS and crwPredict) to tibbles
crw_as_tibble.crwPredict Coerce crawl objects (crwIS and crwPredict) to tibbles
crw_as_tibble.tbl Coerce crawl objects (crwIS and crwPredict) to tibbles
displayPar Display the order of parameters along with fixed values and starting values
expandPred Expand a time indexed data set with additional prediction times
fillCols Fill missing values in data set (or matrix) columns for which there is a single unique value
fix_path Project path away from restricted areas
fix_segments Identify segments of a path that cross a restricted area
flatten 'Flattening' a list-form crwPredict object into a data.frame
get_mask_segments Identify segments of a path that cross through a restricted area
harborSeal Harbor seal relocation data set used in Johnson et al. (2008)
intToPOSIX Reverse as.numeric command that is performed on a vector of type POSIXct
mergeTrackStop Merge a location data set with a dry time (or other stopping) covariate
northernFurSeal Northern fur seal pup relocation data set used in Johnson et al. (2008)
tidy_crwFit tidy-like method for crwFit object