NEWS

---

causl 0.9.6

BUG FIX

• Corrected quantile computation for Bernoulli random variables.

causl 0.9.5

BUG FIX

• Fixed bug in link_setup when no links provided

causl 0.9.4

NEW FEATURES

• Allow for fitting of t-distributions

causl 0.9.2

NEW FEATURES

• We now allow for specification of only certain link functions.

• Added link() to obtain link functions from causl_family and causl_cop objects.

causl 0.9.1

NEW FEATURES

• Introduced causl_model() and rfrugal() functions, to create a causal model---an object that can be used to simulate from or, in future, fit a frugally parameterized model.

• Added vignette showing how to add a custom family to simulation methods.

CHANGES

• rfrugalParam calls new function rfrugal to simulate data.

• Redundant argument seed removed from rfrugalParam. Argument careful moved to control.

• Other control arguments removed: trace, warn, max_wt.

• control argument removed from sim_inversion() and sim_rejection().

• "multi_copula" changed to "inversion_mv".

causl 0.9.0

NEW FEATURES

• Introducing ability to simulate from a multivariate copula using the inversion method. Choose method = "multi_copula".

causl 0.8.9

NEW FEATURES

• Made it possible to use a custom distribution to simulate via an object of class causl_family.

CHANGES

• Began migration of univarDens() to glm_dens().

• Changed name dGaussDiscCop2() to dGaussDiscCop().

• Made changes to fitCausal, including renaming as fit_causl and removing some arguments from function and splitting off identification of discrete variables.

• Modified par2 in simulations for t-distribution to df.

BUG FIXES

• Fixed bug in discrete causal_family types.

• Fixed bug in pair_copula_setup().

• Added link to output from binomial_causl_fam.

causl 0.8.8

NEW FEATURES

• Added log-link for binomial family

CHANGES

• Suppressed messages in tests

• Edited to remove quantiles from simulated data under inversion method

causl 0.8.7

CHANGES

• Added process_prespecified

causl 0.8.6.9000

CHANGES

• Minor fix to process_family

• New test for plasmode simulation with one pregenerated variable.

causl 0.8.5.9000

CHANGES

• Fixed bug in plasmode dataset generation that caused failure if only one variable was used.

causl 0.8.4.9000

CHANGES

• Further reorganization, mostly to export additional functions.

causl 0.8.3.9000

CHANGES

• process_inputs and its derivatives further edited for compatibility with survivl package.

causl 0.8.2.9000

CHANGES

• process_inputs() function now substantially reorganized. Uses various subsidiary functions to carry out its work.

BUG FIXES

• Fixed minor bug in is_categorical()

causl 0.8.1.9000

NEW FEATURES

• rfrugalParam() now allows for 'plasmode' simulation. That is, one can add a data.frame of variables dat that acts as a collection of pre-generated covariates.

• New vignette 'Plasmode' gives instructions on how to use this feature.

causl 0.8.0.9000

NEW FEATURES

• Added a NEWS.md file!

• Categorical and ordinal variables are now implemented for simulation with rfrugalParam() (provided that the now default method="inversion" is used). The parameterizations for categorical variables use the logit-contrasts of each level with the baseline-level; for ordinal variables it uses the logit of successive cumulative probabilities. In other words, it uses $\log P(X \leq i)/P(X > i)$ for each $i = 1,\ldots,l-1$ where there are $l$ levels.

• Added a vectorized cumsum_mat function in Rcpp, that acts on the rows of a matrix.

CHANGES

• rfrugalParam() now has method="inversion" as the default. The much slower method="rejection" is kept only for backwards compatibility.

• Some functions (rescaleVar, rescaleCop, sim_CopVal) have had their old names deprecated in favour of snake case versions (rescale_var, rescale_cop, sim_copula). In addition the dataframe copulaVals has been replaced by copula_vals.

• link_hack has been renamed to link_apply.