imes</code> doesn’t have to be an integer. A finer time grid might be chosen, to give a better approximation to a prediction from the ideal model where risk changes <em>continuously</em> with age.</p>
<p>But remember the fitted model itself was based on an approximation to the data, so we can never get an <em>exact</em> prediction from the ideal model.</p>
<p><code>totlos.msm</code> also accepts <code>piecewise.times</code> and <code>piecewise.covariates</code> arguments of the same form, to handle
predic