pan><span class="op">)</span></span></span>
<span class="r-err co"><span class="r-pr">#&gt;</span> <span class="error">Error in as.data.frame(unclass(data), stringsAsFactors = TRUE):</span> object 'split_data' not found</span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/base/warning.html" class="external-link">suppressWarnings</a></span><span class="op">(</span></span></span>
<span class="r-in"><span>  <span class="va">model</span> <span class="op">&lt;-</span></span></span>
<sp