Atomic

Count/Percentage of chromosome aberrations in atomic bombs survivors.

Functions to fit regression models for bounded continuous and discrete responses. In case of bounded continuous responses (e.g., proportions and rates), available models are the flexible beta (Migliorati, S., Di Brisco, A. M., Ongaro, A. (2018) <doi:10.1214/17-BA1079>), the variance-inflated beta (Di Brisco, A. M., Migliorati, S., Ongaro, A. (2020) <doi:10.1177/1471082X18821213>), the beta (Ferrari, S.L.P., Cribari-Neto, F. (2004) <doi:10.1080/0266476042000214501>), and their augmented versions to handle the presence of zero/one values (Di Brisco, A. M., Migliorati, S. (2020) <doi:10.1002/sim.8406>) are implemented. In case of bounded discrete responses (e.g., bounded counts, such as the number of successes in n trials), available models are the flexible beta-binomial (Ascari, R., Migliorati, S. (2021) <doi:10.1002/sim.9005>), the beta-binomial, and the binomial are implemented. Inference is dealt with a Bayesian approach based on the Hamiltonian Monte Carlo (HMC) algorithm (Gelman, A., Carlin, J. B., Stern, H. S., Rubin, D. B. (2014) <doi:10.1201/b16018>). Besides, functions to compute residuals, posterior predictives, goodness of fit measures, convergence diagnostics, and graphical representations are provided.

Roberto Ascari

FlexReg

Regression Models for Bounded Continuous and Discrete Responses

Sonia Migliorati

Andrea Ongaro

Atomic function

A <code>data.frame</code> containing 1039 observations on the following 5 variables:<dl>
<dt><code>y.perc</code></dt>
<dd>the percentage of cells with chromosomal abnormalities.</dd><dt><code>y</code></dt>
<dd>the number of cells with chromosomal abnormalities.</dd><dt><code>n</code></dt>
<dd>the number of analyzed cells. It is fixed to 100 for all the survivors.</dd><dt><code>dose</code></dt>
<dd>a quantitative measure of the radiation exposure level, expressed in rads.</dd><dt><code>bomb</code></dt>
<dd>a factor, indicating which bomb the subject survived (H = Hiroshima, N = Nagasaki).</dd>
</dl>

Format

Atomic bombs data — Atomic

A <code>data.frame</code> containing 1039 observations on the following 5 variables:<dl>
<dt><code>y.perc</code></dt>
<dd>the percentage of cells with chromosomal abnormalities.</dd>

<dt><code>y</code></dt>
<dd>the number of cells with chromosomal abnormalities.</dd>

<dt><code>n</code></dt>
<dd>the number of analyzed cells. It is fixed to 100 for all the survivors.</dd>

<dt><code>dose</code></dt>
<dd>a quantitative measure of the radiation exposure level, expressed in rads.</dd>

<dt><code>bomb</code></dt>
<dd>a factor, indicating which bomb the subject survived (H = Hiroshima, N = Nagasaki).</dd>


</dl>

Atomic: Atomic bombs data

Description

Arguments

Format

Details

References