Breaking Changes
- Soft-deprecated ‘burrIII3’ distribution as poorly defined.
- Soft-deprecated ‘pareto’ distribution as poor fit on SSD data.
Major Changes
- Reparameterized ‘llogis’ distribution in terms of locationlog and scalelog.
- Reparameterized ‘burrIII3’ distribution in terms of lshape1, lshape2 and lscale.
- Reparamaterized ‘burrIII2’ distribution in terms of locationlog and scalelog.
- Reparamaterized ‘lgumbel’ distribution in terms of locationlog and scalelog.
- Reparamaterized ‘gompertz’ distribution in terms of llocation and lshape.
- Standardized handling of arguments for d,p,q,r and s functions for distributions.
Minor Changes
rdist() functions now use length of n if length(n) > 1.- Added
slnorm() to get starting values for ‘dlnorm’ distribution.
Internal Changes
- Switch to C++ implementation for distributions.
Breaking Changes
- Changed computable (whether standard errors must be computable to be considered to have converged) to FALSE by default.
- Enforces only one of ‘llogis’, ‘llog’ or ‘burrIII2’ in all sets (as identical).
Major Changes
- Deprecated ‘burrIII2’ for ‘llogis’ as identical.
- Replaced ‘burrIII2’ for (identical) ‘llogis’ in default set.
- Fixed bug in
rllog() that was causing error.
- Fixed parameterisation of ‘lgumbel’ that was causing it to fail to fit with some data.
Minor Changes
- Provides warning message about change in default for ci argument in predict function.
- Only gives warning about standard errors not being computable if computable = TRUE.
- Uses tibble package to create tibbles.
- Removed dependency on checkr.
Breaking Changes
- Default distributions changed to ‘burrIII2’, ‘gamma’ and ‘lnorm’ from ‘gamma’, ‘gompertz’, ‘lgumbel’, ‘llog’, ‘lnorm’ and ‘weibull’.
- Changed implicit behaviour of
ssd_hc() and predict() where ci = TRUE to explicit ssd_hc(ci = FALSE) and predict(ci = FALSE).
- Replaced
shape and scale arguments to llog() with lshape and lscale.
- Replaced
location and scale arguments to lgumbel() with llocation and lscale.
Major Features
- Added Burr Type-III Two-Parameter Distribution (
burrIII2).
- Added
ssd_hp() to calculate hazard percent at specific concentrations.
- Added
ssd_exposure() to calculate proportion exposed based on distribution of concentrations.
- Optimized
predict() and added parallel argument.
- Tidyverse style error and warning messages.
Minor Features
ssd_fit_dists() now checks if standard errors computable.- Added Burr Type-III Three-Parameter Distribution (
burrIII3).
- Added
sdist(x) functionality to set starting values for distributions.
- Added
ssd_plot_cdf() to plot cumulative distribution function (equivalent to autoplot())
nobs() for censored data now returns a missing value.- Default
ssd_fit_dists() distributions now ordered alphabetically.
Deprecated
- Deprecated
ssd_hc() argument hc = 5L for percent = 5L.
- Deprecated
dllog() etc for dllogis().
- Deprecated
ssd_cfplot() for ssd_plot_cf().
Bug Fixes
- Fixed
llog distribution with small concentrations.
- Ensured concentrations below 1 have 1 significant figure in plots.
- added citation
- Added ssdtools-manual vignette
- Changed predict() and ssd_hc() nboot argument from 1001 to 1000
- Added hc5_boron data object
- No longer export ssd_fit_dist() as ssd_fit_dists() renders redundant
- geom_hcintersect() now takes multiple values
- More information in DESCRIPTION
- Added CRAN badge
- Removed dependencies: dplyr, magrittr, plyr, purrr
- Moved from depends to imports: VGAM, fitdistrplus, graphics, ggplot, stats
- Moved from imports to suggests: tibble
- Added contributors
- Added hex