Atomic

Counts of chromosome aberrations in atomic bombs survivors.

Functions to fit regression models for bounded responses (e.g., proportions and rates) and binomial data. 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., and Cribari-Neto, F. (2004) <doi:10.1080/0266476042000214501>), the flexible beta-binomial (Ascari, R. and Migliorati, S. (2021) <doi:10.1002/sim.9005>), the beta-binomial, and the binomial one. Inference is dealt with a Bayesian approach based on the Hamiltonian Monte Carlo (HMC) algorithm (Gelman, A.; Carlin, J. B.; Stern, H. S. and 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 Responses

Atomic function

A data frame containing 1039 observations on the following 4 variables.<dl>
<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 observations.</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 data frame containing 1039 observations on the following 4 variables.<dl>
<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 observations.</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