Changes in version 4.6.1 (2023-07-10) New features or changed behaviour of old functions o collate() redefined as generic, behaviour mostly unchanged Bugs fixed o collate() failed if betanames specified for multi-session model (multi-row newdata) Other o read.traps() allows comma-separated usage values when binary.usage = FALSE o sim.popn() handles IHP N=0 without crashing o shift.mask() updates boundingbox o chat.nk may use clusters in parallel for simulation o internal boundarytoSF extended to sf geometry objects o Fletcher.chat() protected against near-zero expected values Bugs fixed o secr.fit() crashed R for polygon data with hcov specified Changes in version 4.6.0 (2023-05-22) New features or changed behaviour of old functions o exports Fletcher.chat(), nk() o Enk() simulation option o chat.nk() optionally simulates c-hat o AIC and modelAverage methods acquire variance inflation argument 'chat' for optional computation of quasi-AIC etc. o adjustVarD() acquires optional argument 'chat' Bugs fixed o make.capthist() lost covariates when creating non-spatial capthist Other o trim() method for secrlist objects o chat.nk() 'stats' components renamed; sbar added o Enk() (and hence chat.nk) works for multi-catch traps o sim.popn() model2D 'cluster' has clone-in-place option o fast computation of spacing (PR of Philipp Jund, now ctb) o faster C++ for transect fitting (PR of Philipp Jund) Changes in version 4.5.9 (2023-03-09) New features or changed behaviour of old functions o none Bugs fixed o secr.fit() fitted wrong model for Poisson count detectors when fastproximity = FALSE, giving bad estimates esp. of detectfn parameters o make.capthist() failed with points snapped to transects o sim.popn() model2D 'cluster' mistakenly allowed Ndist = 'fixed' o region.N() could fail with user-provided distance function or when detectors varied among sessions Other o MS.capthist() help clarified o ip.secr() and pfn() defunct o secr.fit() recognises time-covariate model when timecov is a multi-session list, avoiding default to fastproximity Changes in version 4.5.8 (2022-11-29) New features or changed behaviour of old functions o plot method for traps acquires argument 'frame' o trapsPerAnimal() new capthist summary function o Enk() new function expected individuals per detector o chat.nk() and adjustVarD() new functions for spatial overdispersion o summary method for capthist optionally includes frequency distribution of traps per animal (count of tpa >= 2 if terse) o sim.popn() with model2D = 'IHP' the density argument may be a function Bugs fixed o hcov failed with one level missing in some sessions (following change in 4.5.1) o sim.secr() crashed R when used with learned-response models (b, B etc.) o secr.fit() failed occasionally with distribution = 'binomial' o randomHabitat(..., plt = TRUE) assumed raster::plot loaded o spotHeight() not working Other o make.lacework limit of 5000 detectors o plot.traps() box always black (bty='o') Changes in version 4.5.7 (2022-10-08) New features or changed behaviour of old functions o nontarget() replacement function o addCovariates() may be applied to popn object Bugs fixed o Tu<- replacement failed with multi-session capthist o region.N erroneous values with new mask Changes in version 4.5.6 (2022-08-13) New features or changed behaviour of old functions o sim.popn() model2D = 'IHP' allows session-specific density o clone() new option type = 'truncatedpoisson' Bugs fixed o plot.mask legend sometimes failed ("object 'cex' not found") Other o for CRAN, update latex specials in help pages o nontarget documentation Changes in version 4.5.5 (2022-05-31) New features or changed behaviour of old functions o verify.capthist() checks nontarget matrix if present o plot.capthist() new type 'nontarget' o gridCells() constructs cells around points (e.g., traps) Bugs fixed o make.systematic() failed because quantities from sf are class 'units' o addCovariates could fail when source polygons overlap o predictDsurface failed with user-provided density function and single-session o trap.builder() failed with edgemethod 'centreinside' Other o on GitHub at https://github.com/MurrayEfford/secr Changes in version 4.5.4 (2022-04-22) New features or changed behaviour of old functions o reinstate GRTS option in trap.builder() o makeStart() encapsulates code for initial values o ip.secr() is deprecated (see new package at https://github.com/MurrayEfford/ipsecr) Bugs fixed o distancetotrap() and hence esa.plot() failed with polygon inputs o addSightings() did not pass extra arguments to read.table() for multisession input o secr.fit() failed with sighting data when usage 0 for any detector (since 4.4.6 Oct 2021) o likelihood-only evaluation failed with mark-resight models if chat not initialised o read.traps() failed for polygon or transect data with non-contiguous data points Other o suggests spsurvey >= 5.3.0 o bad densities in likelihood give warning, not error o autoini tweaked to treat 'capped' detector type as 'proximity' o collate tweaked to allow mixture of secr, ipsecr models Changes in version 4.5.3 (2022-02-14) New features or changed behaviour of old functions o more spatial data types for 'poly' and 'region' function arguments o rast generic method for mask, Dsurface objects creates terra SpatRaster object o read.traps() accepts ESRI shapefile of point, polygon or line features (experimental) o fxi.contour() argument 'SPDF' replaced by 'output', with options 'sf', 'SPDF' Bugs fixed o moves() failed with empty capthist input when names = FALSE o details$ignoreusage=TRUE not respected by esa(), derived(), region.N() o secr.fit() details$ignoreusage=TRUE failed when using 'fastproximity' Other o classes (sf, sfc, sfg) and methods (st_) from package 'sf' largely replace 'sp' (now in Suggests) o trap.builder() SRS sf::st_sample replaces sp::spsample o imports functions from 'sf' and 'terra' o no longer suggests maptools, rgeos, rgdal o internal function boundarytoSF documented o new vignette secr-spatialdata.pdf o revised OVforest shapefile in extdata o one trap.builder() example moved to \dontrun to save time Changes in version 4.5.1 (2022-01-18) New features or changed behaviour of old functions o none Bugs fixed o secr.fit() hybrid mixture model (hcov with known-class data) did not use class-dependent detection model, resulting in erroneous estimate of pmix (secr >= 4.0) o memory error getxy() C++ (transect simulation; no effect on users) Changes in version 4.5.0 (2022-01-06) New features or changed behaviour of old functions o make.capthist() 'snapXY' also works for points along transects o modelAverage() new generic supercedes model.average() o snip() acquires 'tol' argument, now used by discretize() o new link 'i1000' (identity x 1000) for modelling very low density o sim.popn() 'UNI' movement model (radius move.a) o sim.popn() models differential settlement of dispersers (model2D = 'IHP' and core has covariate 'settle' 0-1) o f() term in formula for non-linear density models (experimental) Bugs fixed o verify() error 'Duplicated or missing row names (animal ID)' triggered when no live releases o sim.popn() multi-session movement allowed some animals outside the boundary on the first step (edgemethod 'truncate') o secr.fit() failed with data from multiple transects o snip() and discretize() failed when transectID contained '.' o nearesttrap, discretize etc. failed if no detections in some sessions o alive() and reduce.capthist() erroneous when only one animal o secr.fit() fastproximity failed when no detections in some sessions o secr.fit() signal detector problem with Boost distribution function (since 4.4.7 Oct 2021) o secr.fit() mark resight simulations failed (since 4.4.5 July 2021) Other o suggests 'terra' package (potentially supercedes 'raster') o tests added for transect and signal data o model.average() deprecated o update C++ code for BH 1.78 Changes in version 4.4.8 (2021-11-09) New features or changed behaviour of old functions o none Bugs fixed o 'count' detectors failed with Poisson model (reported by Ian Durbach) owing to problem with switch to Boost statistical distributions in C++ Changes in version 4.4.7 (2021-10-18) Other o options requiring package 'spsurvey' suspended - trap.builder(method = 'GRTS') and derivednj(method = 'local') - because of changes in spsurvey 5.0.0 o 'spsurvey' removed from Suggests Changes in version 4.4.6 (2021-10-18) New features or changed behaviour of old functions o sim.popn() exponential (RDE), gamma (RDG) and lognormal (RDL) movement distance o sim.popn() zero-inflated movement models BVNzi, BVEzi, RDEzi, INDzi o addCovariates() accepts RasterLayer spatialdata o make.capthist() and read.capthist() tweaked to allow nonspatial input Bugs fixed o snip() failed in recent versions o secr.fit() and bias.D() spurious warning of variable usage Other o Boost math library used for statistical distributions in C++ code o number of threads explicit in calls to RcppParallel parallelFor o sim.popn() with movement: edgemethod 'truncate' now synonym 'normalize' o deprecated and defunct functions handled formally (see e.g., help("secr-defunct")) Changes in version 4.4.5 (2021-07-12) New features or changed behaviour of old functions o 'sigmak' parameterization allows session covariates o experimental parameter 'd' for parameterization sigma = sigmak/sqrt(D+d) + c o sim.popn() all movement simulations use polar coords + rgamma, rweibull etc. o extractMoves() new function for checking movement simulations Bugs fixed o as.data.frame.capthist() in 4.4.4 mis-assigned traps to captures o trivial: bad trace when fixedbeta specified Other o 'BVN','BVE','BVT' aliases for movemodels 'normal','exponential','t2D' Changes in version 4.4.4 (2021-05-29) New features or changed behaviour of old functions o animalID(), trap() etc. acquire argument 'sortorder' Bugs fixed o erroneous plot(), verify() and RPSV() results for multi-polygon data o ASAN error: container overflow prwifastproximity.cpp o rectangularMask() misaligned covariates by one cell, with consequences for raster method for 'mask' class Other o multithreaded Examples now in dontrun{} to avoid TBB library in checks o interactive dontrun{} Examples trapped to allow R CMD check --run-dontrun o new text files in extdata for MRCH addSightings example o flip() arguments changed F to FALSE o new test: multi-detector polygon likelihood o new test: join() nonspatial data Changes in version 4.4.2 (2021-05-04) Other o rename generic make.newdata() to makeNewData() o Imports RcppParallel version >= 5.1.1 to dodge problems in earlier releases o run tests with Sys.setenv(RCPP_PARALLEL_BACKEND = "tinythread") to avoid CRAN errors Changes in version 4.4.1 (2021-05-01) Other o Add final '/' to url in DESCRIPTION and fix typo in secr-package.Rd Changes in version 4.4.0 (2021-05-01) New features or changed behaviour of old functions o sim.popn() movement model may be user-provided function o sim.popn() recrmodel may be 'specified' (add number in details$Nrecruits) o sim.popn() optional age covariate for multisession populations o HPX new detectfn (binary detection in polygon) o plot.traps minor change in colours used with polygon detectors o split.capthist() accepts multi-session input o reduce.traps() 'newxy' selects 'mean' or 'first' for coordinates of new detector from group defined by 'newtraps' Bugs fixed o make.capthist() rejected some valid records as duplicates (R. Glennie) o length > 1 in coercion to logical (internal function sessionLL x2) o sim.popn() with movement: 'normalize' edgemethod did not normalize o secr.make.newdata() (and predict.secr()) sometimes ignored all.levels = FALSE o make.grid() spacing attribute missing in case of single detector o reduce.capthist() failed with polygon input and nonspatial output o no warning when attempt to combine capped and other detector types o subset.capthist() by occasion could return wrong session labels Other o Suggests testthat, adds some unit tests in 'tests' folder o sim.popn() with movement: 'clip' edgemethod works with constantN o generic make.newdata() replaces secr.make.newdata() (seldom used directly; see 4.4.2) o shareFactorLevels() when not multisession now converts ch _covariates_ to factor Changes in version 4.3.3 (2020-12-11) New features or changed behaviour of old functions o subset.capthist() all-negative subset argument indicates exclusion o shareFactorLevels() default for stringsAsFactors now TRUE o sim.popn() with movement: new 'normalize' option for edgemethod Bugs fixed o multisession hcov failed if only one level present in one or more sessions o plot.capthist() failed when no detections in session o plot.mask(..., dots = FALSE) crashed when no points in mask o secr.fit failed with hcov if only one class present in a session o region.N() with multisession model failed using 'hcov' and otherwise not reliable o alive() incorrect order of output o sim.detect() renumbered multi-session capthist even when renumber = FALSE Other o terminal '/' on https://www.otago.ac.nz/density/ in Rd required by CRAN o verify() suggests shareFactorLevels() when needed o more robust handling of sessions with zero detections o join() gives advice when table limit exceeded (2^31 elements) o output from region.N() with multisession model uses session names o rectangularMask() rewritten to allow disjunct mask blocks o character sessioncov used in D~ models automatically converted to factor o sim.popn() undocumented movement options 'radialexp' and 'radialnorm' o reduce.capthist() more robust when no detections o sim.capthist() now accepts character detectfn when nsessions>1 Changes in version 4.3.1 (2020-08-31) New features or changed behaviour of old functions o subset.traps() allows subset argument to be function, as for subset.capthist() o de novo calculation of spacing for traps, mask uses median instead of mean o read.traps() enables usage and covariate input from data and xls o summary.traps() new argument 'covariates' for covariate summaries (default FALSE) o verify() invisible output includes detail on captures o ORL() new function for observed range length o centroids() new function for detection centroids Bugs fixed o verify() bug on covariates call to stringsAsFactors fn o moves() lost animal order when animal IDs numeric and names = TRUE o secr.make.newdata() (and hence predict() etc.) included superfluous combinations of session covariates o read.mask() assigned wrong spacing for some unusual configurations o occasion() could result in wrong sequence, with consequences for various plots and summaries Other o summary.secr() always reports detector percent usage o plotMaskEdge() increased robustness o make.capthist() coerces third column of captures dataframe to integer o updateCH() recoded to avoid reduce.capthist() that now assumes 3-D o secr.fit() calls check3D in case data pre-dates secr 3.0 o fxi.secr() and related functions work with models fitted using fastproximity = TRUE Changes in version 4.3.0 (2020-07-14) New features or changed behaviour of old functions o RSE() returns matrix with one row for each row of newdata o shareFactorLevels() gains argument stringsAsFactors to convert character to factor Bugs fixed o learned response models (b, B etc.) fitted incorrectly to data from multi-catch traps (detector 'multi') and exclusive polygon-type detectors (detector 'polygonX', 'transectX') o esa() ignored individual covariates in models with CL = TRUE, with consequences for derived() and region.N() Other o internal changes for compatibility with R 4.0 o make.capthist() forces character covariates to factor for backward compatibility o verify() converts character covariates to factor before checking levels consistent across sessions o derived() and region.N() now work for models fitted in secr versions before 4.0 Changes in version 4.2.2 (2020-04-08) New features or changed behaviour of old functions o none Bugs fixed o individual covariate (CL) models for proximity data failed unless fastproximity = FALSE o Bk models for proximity data gave error unless fastproximity = FALSE o join() sometimes failed (circumstances unclear) Other o adjusted protection for calls to suggested package rgdal o suggest.buffer() trivial change to Examples Changes in version 4.2.0 (2020-02-22) New features or changed behaviour of old functions o new mechanism for setting number of threads (default 2) o setNumThreads() new function o make.systematic() 'rotate', 'centrexy' and 'keep.design' arguments o make.lacework() new function o make.grid() and make.circle() acquire argument 'leadingzero') (default TRUE) Bugs fixed o make.systematic() unintended result when spacing of rows and columns differs Other o pdot() uses multithreaded C++ function pdotpointcpp2 o pdot() acquires argument ncores o derivedSystematic() acquires argument ncores o esa() internal limit on ncores (2) removed o trim.secr() drops designD, designNE by default (see 4.0.0) o rotate.traps() checks for zero rows o suggest.buffer() minor internal changes o distancetotrap() uses rgeos::gDistance for polygon detectors if available o fxi.secr() and related functions enabled for polygon detector types Changes in version 4.1.0 (2019-12-17) New features or changed behaviour of old functions o AICcompatible() new S3 method to check models for AIC compatibility o AIC() warns if secr models not compatible o LR.test() stops if secr models not compatible o secr.fit() faster fitting of polygon and transect data o secr.fit() option details = list(convexpolygon = FALSE) allows non-convex polygons. o autoini() uses simpler and more robust code; secr.fit() start values differ slightly from earlier versions; new argument 'adjustsigma'. Bugs fixed o reduce.capthist() subtracted dead animals when outputdetector = "count" o verify.capthist() spurious warning for transect data with character animalID o derived() bad for polygon and transect data in secr 4.0 because esa() corrupted o secr.fit() in secr 4.0 bad likelihood and estimates for some covariate models (bad indexing of parameter array PIA) o secr.fit() failed with multi-session mark-resight data (fixed pID, non-null Tm) o suggest.buffer() failed with input from multi-session fitted model o make.systematic() unintended result when spacing of rows and columns differ Other o RcppNumerical used for numerical integration with polygon and transect detectors o requires R >= 3.5.0 for obscure reasons (serialization of data objects) o suppressed new warnings from regularize.values in approx() o internal function secr.design.MS() argument bygroup replaced with CL o LLsurface() returns value matrix when plot = FALSE (otherwise invisibly as before) (NA where likelihood could not be evaluated) o mark-resight sighting only, partial identification re-enabled Changes in version 4.0.2 (2019-11-11) New features or changed behaviour of old functions o secr.fit() LLonly = TRUE stores number of parameters and timing information o secr.fit() LLonly = TRUE uses default or autoini start values if none provided o summary.secr() versiontime includes elapsed time o summary.capthist() includes summary of individual covariates Other o CRAN release of 4.0 Changes in version 4.0.0 (2019-10-27) New features or changed behaviour of old functions o 'ncores' argument defaults to NULL in most functions (meaning one less than number of available cores for multi-threading) o fx functions 'normal' argument dropped o 'ncores' argument dropped from mask.check(), pmixProfileLL() and simulate.secr() o autoini(), region.N() and suggest.buffer() acquire 'ncores' argument o fast secr.fit() for binary and count proximity detectors (default details$fastproximity = TRUE) o make.systematic() new argument 'order' to control cluster sequence o RSE() extract precision of estimated parameter from fitted model o par.secr.fit() no longer automatically sets ncores=1 in the separate calls to 'secr.fit' o secr.fit() details option autoini = 'all' for start values from multi-session data Bugs fixed o sim.secr() with 'multi' detectors slightly understated detection rate owing to mis -assignment of detection locations o make.systematic() and trap.builder() ignored region polygon when cluster not specified (edgemethod set internally to 'allowoverlap' Other o converted C code to C++ with multithreading in RcppParallel as appropriate o some features of earlier versions have yet to be implemented in 4.0 o secr object from secr.fit() includes design matrices for D and noneuc o functions read.SPACECAP() and write.SPACECAP() removed Changes in version 3.2.2 (2019-07-02) New features or changed behaviour of old functions o summary method for popn objects o write.mask() function Bugs fixed o sim.popn() exponential o plotMaskEdge() sometimes shows internal lines (non-integer spacing) Other o write.capthist help wrote files to disk; now in \dontrun{} Changes in version 3.2.1 (2019-06-01) New features or changed behaviour of old functions o sim.popn() allows exponential and t2D movement between sessions o sim.popn() new details arguments movemodel, move.a; sigma.m deprecated Bugs fixed o make.capthist() with transect data gave error when points did not lie on transect o moves() failed with nonspatial capthist (also summary.capthist(moves = T) etc.) o plot.popn() ignored frame argument when collapse = TRUE Changes in version 3.2.0 (2019-01-25) New features or changed behaviour of old functions o derivednj() extended for weighted variance (R2, R3), with subtle argument changes o derivednj() and dependent functions return 2-line dataframe (rows 'esa', 'D') as for derived() o derivedSession() extended for weighted variance o derivedCluster() extended for weighted variance o derived() for secr and secrlist objects acquires argument 'bycluster' o split method for mask objects (split.mask) o trap.builder() new edgemethod and exclmethod options "anyinside", "centreinside" etc. o derived.secr() improved handling of sessions with zero detections o derivedSystematic() implements Fewster 2011 variance for systematic cluster designs o make.systematic() acquires argument "chequerboard", saves originbox, argument 'originoffset' replaces 'bufferorigin' o spacing.traps() returns numeric(0) instead of NULL for 1-trap arrays o write.traps() removed single quotes around objectname o secr.fit() allows mixture models when detector 1 unused on occasion 1 o make.mask() more explicit warning when nrow = 0 o plot.traps() gridlines = TRUE respected for add = TRUE (default gridlines = !add) o pdot.contour() and related functions acquire argument 'poly.habitat' o summary method for capthist objects (summary.capthist) optionally reports movements Bugs fixed o make.systematic() grid didn't span extremes of some region polygons o sighting-only did not allow unidentified marked sightings o reduce.traps() failed for reduced number of occasions when both usage and markocc specified Changes in version 3.1.8 (2018-11-19) New features or changed behaviour of old functions o make.systematic() saves origin and centres as attributes o make.systematic() new argument bufferorigin controls random origin o summary method for secr objects, with print and AIC methods for summary (may change) o clone.popn() rownames consistent with clone.capthist() (1.1, 1.2...) Bugs fixed o make.mask() not using keep.poly and check.poly arguments for multi-session masks o detector usage not correctly included in some models with detector type "multi" o clone methods not robust - freq now rounded to avoid quirky behaviour of rep() Other o some models (e.g., g0~bk with detector type "multi") fit more quickly than before Changes in version 3.1.7 (2018-10-03) New features or changed behaviour of old functions o esa.plot() computes CVpdot for varying buffer width o esa.plot 'as.density' argument replaced with 'type' and new argument 'conditional' o sim.popn() edgemethod new options 'stop' and 'reflect' Bugs fixed o OVpossumCH dataset Ageclass covariate placed 1-year-olds in >=2 year class o join() detector attribute not expanded correctly for some inputs o reduce.capthist() bug introduced in 3.1.6 o subset.popn() failed for multi-session populations o region.N() gave misleading R.N for models with individual variation in detection, including h2 o trap.builder() failed when projection specified for 'region' o addTelemetry() failed with mark-resight data o write.capthist() lost non-numeric detector names (since 2017-11-30) Other o secr-manual.pdf is no longer distributed with package - see https://www.otago.ac.nz/density/pdf/secr-manual.pdf or https://CRAN.R-project.org/package=secr/secr.pdf. Changes in version 3.1.6 (2018-05-14) New features or changed behaviour of old functions o sim.popn() details (turnover) argument "wrap" deprecated; use "edgemethod" o plot method for capthist object copes with missing rownames o CVpdot() new function for CV of p. across mask o improved handling of attributes (intervals and sessionlabels) in subset and reduce methods for capthist objects o join() allows site matching by name, which is faster o timevaryingcov() extended to capthist objects for openCR - see ?join Bugs fixed o internal fn predictD returned matrix instead of vector, causing problems in region.N o sim.capthist() failed for signal detectors (df0 error reported by Ben S) Changes in version 3.1.5 (2018-02-25) New features or changed behaviour of old functions o rotate method for capthist objects o secrlist() returns input secrlist object unchanged o plotMaskEdge() accepts multi-session input o secr.make.newdata() rewritten; acquires logical argument 'all.levels' o predict method for secr objects passes dots argument to secr.make.newdata() o join() intervals optionally passed as attribute 'intervals' o coef method for secrlist objects o unRMarkInput() assumes all freq = 1 if freq field missing o new detectfn 19 (HVP hazard variable power) o RMarkInput ignores 'covariates' argument when no covariates o reduce and subset methods for capthist objects allow nonspatial input and output when verify = FALSE o reduce and subset methods for capthist objects honour 'intervals' attribute o summary method for nonspatial capthist objects drops detectors from table of counts o plot method for popn objects acquires new arguments for overlaying multiple sessions o sim.popn() argument sigma.m < 0 causes random relocation o sim.popn() open population recruitment model "multinomial" o LLsurface now a generic function with method for 'secr' objects o new capthist attribute 'sessionlabels' useful for joined capthist Bugs fixed o secr.fit gave misleading estimates with binomial count data when size derived from usage (reported by Mathias Tobler) o predict.secr misreported pmix for other than simple h2 models (pmix = 0.5 for some levels) o detectfnplot() in error when detectfn = 'HAN' o sim.capthist() and sim.resight() failed in 3.1.3 when detector type varied by occasion o make.poly() failed with some polygon list inputs Other o optional 'interval' attribute of capthist objects renamed 'intervals' (see ?join) o export internal function insertdim() o minor tweaks for compatibility with open population code o NEWS for versions before 3.0.0 archived o some old documentation removed to online vignette secr-models.pdf Changes in version 3.1.3 (2017-12-02) New features or changed behaviour of old functions o secr.design.MS() acquires argument 'contrasts' (used internally) Bugs fixed o sim.capthist() ignored recapfactor provided in detectpar Other o region.N now a generic method with functions for secr and secrlist objects o corrected some obsolete documentation references to maptools package Changes in version 3.1.1 (2017-11-30) New features or changed behaviour of old functions o new detector type 'capped' in make.grid(), sim.capthist(), reduce(), verify(), secr.fit() etc. o as.data.frame methods for capthist and traps objects o secrlist() and MS.capthist() generate names from input objects o circular.r() and circular.p() acquire argument 'upper' for explicit upper limit of integration o LR.test generalised to any fitted models with a logLik method o plot method for secr objects: confidence limits now computed on log scale for hazard detectfn HHN, HEX etc. to match predict.secr o rbind method for traps adds suffix to names only when needed to avoid any duplication o verify method for capthist objects checks for all-zero histories and missing rownames o summary method for capthist objects: 'terse' option activated for single-session objects o subset method for capthist objects: subset may be defined as function (useful for covariate-based selection) o join() acquires arguments interval, to set between-session intervals directly, and sessions, for session names o secr.fit() details argument 'contrasts' for specialised coding of factor predictors (example in secr-multisession.pdf) o secr.fit() details argument 'newdetector' to override detector type o 'newdetector' reported by print.secr Bugs fixed o predict method for secr objects failed to report SE for parameters with some fixed coefficients (fixedbeta) o verify.capthist failed to report detections at unused detectors Other o requires package stringr for some functions o class attribute of multisession objects changed to place "list" last -- c("list", "capthist") becomes c("capthist", "list") o LLsurface.secr automatically substitutes lambda0 for g0 given detectfn 14:18 o experimental "nontarget" capthist attribute o make.mask() explicit error when capthist passed o derived is now a generic method with functions for secr and secrlist objects o derived.nj() renamed derivednj(), derived.mash() renamed derivedMash() etc. o && changed to & throughout - should have no effect except fixes verify bug, but be wary Changes in version 3.1.0 (2017-09-20) New features or changed behaviour of old functions o par.secr.fit() acquires arguments save.intermediate and LB to allow load balancing (thanks to Mathias Tobler) o par.secr.fit() default value of 'seed' changed from 123 to NULL o rbind.popn() now an S3 method; no longer accepts list input o rbind.capthist() now an S3 method o randomHabitat() acquires argument 'seed', saved as an attribute (thanks to Erin Peterson) o detectfnplot() acquires argument 'hazard' for plotting hazard Other o adjustment to 'ts' predictor for secr.fit mark-resight models o documentation of random number seeds in ?secrRNG o start vector returned by secr.fit now named Bugs fixed o faulty start vector when model included both h2 and noneuc Changes in version 3.0.2 (2017-06-07) New features or changed behaviour of old functions o make.grid() and make.circle() acquire argument 'markocc' o read.traps() accepts Excel xls or xlsx input (requires readxl) Bugs fixed o plot.secr misleading axis label 'Detection lambda' o sim.resight() could fail with markingmask and predefined popn Other o imports file_ext from tools package o attributes of output from sim.popn now include Nbuffer and D o speed increase for "count" detectors o miinor adjustments to sim.popn for compatibility R 3.4.0 Changes in version 3.0.1 (2017-05-03) New features or changed behaviour of old functions o 'unresolved' sightings now stored in Tn attribute of capthist o sim.resight() acquires argument 'unresolved' o plot.secrlist() accepts colour vector o new function as.mask() to coerce traps objects for plotting o moves() acquires argument 'names' to control sort order (new default) Bugs fixed o sightingPlot() legend ignored fill argument Documentation o addTelemetry omitted 'single' and 'multi' from permitted detectionCH types Other o discretize() updated for 3.0 o native routine registration completed Changes in version 3.0.0 (2017-04-11) New features or changed behaviour of old functions o 3-D data structure used for trapping data o updateCH() for easy conversion of old data o multiple detector types may be used in one session (point detectors only: single, multi, proximity or count) o marking and sighting occasions may be interspersed o rbind.traps acquires argument 'checkdetector' o user-provided distance matrix may be session-specific o esa 'noccasions' may be less than ncol(usage) o function occasionKey() to embellish petal plots o explicit handling of 'uncertain' sightings Tn o plotMCP() now works with data from point detectors o details$debug in secr.fit() now integer with multiple levels o sightingPlot() new function o plot.capthist() new option "centres" o secr.fit() argument 'details' may be given as character value o telemetrytype attribute of traps objects replaces details$telemetrytype o new addTelemetry() function and revised handling of telemetry data o addTelemetry() allows multi-session data o secr.fit() etc. auto predictor 'tt' nontelemetry vs telemetry occasions o addCovariates() acquires argument 'replace' o c new method for combining secrlist objects o make.capthist() discards repeat detections at exclusive detectors, with a warning o models for polygon or transect detectors requre hazard detection functions o esa.plot() accepts secrlist as input (curves overlaid) o par.secr.fit() acquires argument 'prefix' o predict.secr() acquires argument 'realnames' to select a subset of 'real' parameters Bugs fixed o make.grid() did not assign polyID attribute for polygon detectors o snip() and discretize() for transects dropped occasions with no detections o sim.capthist() failed when 'userdist' supplied (non-Euclidean distances) Other o ovenbird dataset provided with detector type "proximity" o esa() more robust to variation when noccasions specified o new details option 'splitmarked' for resightings (default FALSE) o usagePlot() argument occasion renamed occasions o more compact 'call' component of secr.fit output o discontinued warning when detectfn requires changed parameters (g0 -> lambda0) o plot method for traps enables box around plot (bty = 'o') o plotMaskEdge faster o secr.fit() details savecall = FALSE suppresses call (default in par.secr.fit) o new function shareFactorLevels() to force factor covariates to use the same levels o rgdal::readOGR used instead of deprecated maptools::readShapeSpatial o minor speed improvments for models without learned response o ip.secr() faster default predictorfn