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<title>Octave Fuzzy Logic Toolkit: gensurf</title>
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<h3 class="d-inline-block mr-2">
Function Reference: <b><code>gensurf</code></b>
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<dl>
<dt><u>Function File:</u> <b>gensurf</b><i> (<var>fis</var>)</i></dt>
<dt><u>Function File:</u> <b>gensurf</b><i> (<var>fis</var>, <var>input_axes</var>)</i></dt>
<dt><u>Function File:</u> <b>gensurf</b><i> (<var>fis</var>, <var>input_axes</var>, <var>output_axes</var>)</i></dt>
<dt><u>Function File:</u> <b>gensurf</b><i> (<var>fis</var>, <var>input_axes</var>, <var>output_axes</var>, <var>grids</var>)</i></dt>
<dt><u>Function File:</u> <b>gensurf</b><i> (<var>fis</var>, <var>input_axes</var>, <var>output_axes</var>, <var>grids</var>, <var>ref_input</var>)</i></dt>
<dt><u>Function File:</u> <b>gensurf</b><i> (<var>fis</var>, <var>input_axes</var>, <var>output_axes</var>, <var>grids</var>, <var>ref_input</var>, <var>num_points</var>)</i></dt>
<dt><u>Function File:</u> <var>[x, y, z]</var> = <b>gensurf</b><i> (...)</i></dt>
</dl>
<p> Generate and plot a surface (or 2-dimensional curve) showing one FIS output
as a function of two (or one) of the FIS inputs. The reference input is used
for all FIS inputs that are not in the input_axes vector.
</p>
<div class="ms-5">
<p> Grids, which specifies the number of grids to show on the input axes, may be
a scalar or a vector of length 2. If a scalar, then both axes will use the
same number of grids. If a vector of length 2, then the grids on the two axes
are controlled separately.
</p>
<p> Num_points specifies the number of points to use when evaluating the FIS.
</p>
<p> The final form "[x, y, z] = gensurf(...)" suppresses plotting.
</p>
<p> Default values for arguments not supplied are:
</p><ul>
<li>
input_axes == [1 2]
</li><li>
output_axis == 1
</li><li>
grids == [15 15]
</li><li>
ref_input == []
</li><li>
num_points == 101
</li></ul>
<p> Six demo scripts that use gensurf are:
</p><ul>
<li>
cubic_approx_demo.m
</li><li>
heart_disease_demo_1.m
</li><li>
heart_disease_demo_2.m
</li><li>
investment_portfolio_demo.m
</li><li>
linear_tip_demo.m
</li><li>
mamdani_tip_demo.m
</li><li>
sugeno_tip_demo.m
</li></ul>
<p> Current limitation:
The form of gensurf that suppresses plotting (the final form above) is not yet
implemented.
</p>
<p> <strong>See also: </strong>
<a href="cubic_approx_demo.html">cubic_approx_demo</a>,
<a href="heart_disease_demo_1.html">heart_disease_demo_1</a>,
<a href="heart_disease_demo_2.html">heart_disease_demo_2</a>,
<a href="investment_portfolio_demo.html">investment_portfolio_demo</a>,
<a href="linear_tip_demo.html">linear_tip_demo</a>,
<a href="mamdani_tip_demo.html">mamdani_tip_demo</a>,
<a href="sugeno_tip_demo.html">sugeno_tip_demo</a>,
<a href="plotmf.html">plotmf</a>
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