ws N non-missing N inside-clip-region</code></font>'  
<p>

<!-- @node   Read Grid, Read Image Colorscale, Read Columns, Read -->
<a name="ReadGrid" ></a>
<h4>9.3.33.3: `<font color="#82140F"><code>read grid</code></font>'</h4>

<!-- latex: \index{read grid} -->

`<font color="#82140F"><code>read grid</code></font>' commands read grid characteristics.  (The ``grid'' is
the object that is contoured.)
<p>
For normal ascii or binary files, the commands to read the grid's
x-locations, y-locations and data are:
