pan class='op'>(</span><span class='st'>"linear"</span>, <span class='st'>"quad"</span>, <span class='st'>"spline"</span><span class='op'>)</span><span class='op'>[</span><span class='fu'><a href='https://rdrr.io/r/base/lapply.html'>sapply</a></span><span class='op'>(</span><span class='va'>tuneGrid</span><span class='op'>$</span><span class='va'>timevars</span>, <span class='va'>length</span><span class='op'>)</span><span class='op'>]</span>,
  <span class='st'>"_"</span>,
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