title: Gnuplot 5.2.8: "set logscale", "set clip": no lines drwan to/from 0 (zero ~=~ -inf)
body: <p>When logscale y is set, no (vertical) lines are drawn to/from 0-values (which correspond to -infinity in logscale), independent from the clip value.
  E.g. in this (M)WE:</p>
  <pre><code>reset
  $DATA &lt;&lt; EOD
  10
  0.1
  9
  0.01
  8
  1e-3
  7
  1e-4
  6
  1e-5
  5
  1e-6
  4
  1e-7
  3
  1e-8
  2
  1e-9
  1
  0
  1
  10
  EOD
  set xrange [*:|$DATA|-1]
  set xtics 1
  set yrange [0.5:*]
  set logscale y
  set grid
  set style data linespoints
  plot $DATA
  show clip
  </code></pre>
  <p>no (vertical) lines are drawn from (18|1) to (19|0) and from (19|0) to (20|1).</p>
  <p>Is there another way to get these lines besides changing the 0-values to something like 1e-99?</p>