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<h1 class="refname">fann_get_bit_fail</h1>
<p class="verinfo">(PECL fann >= 1.0.0)</p><p class="refpurpose"><span class="refname">fann_get_bit_fail</span> — <span class="dc-title">The number of fail bits</span></p>
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<div class="refsect1 description" id="refsect1-function.fann-get-bit-fail-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><strong>fann_get_bit_fail</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$ann</code></span>
)</div>
<p class="para rdfs-comment">
The number of fail bits; means the number of output neurons which differ more than the bit fail limit
(see <span class="function"><a href="function.fann-get-bit-fail-limit.html" class="function">fann_get_bit_fail_limit()</a></span>, <span class="function"><a href="function.fann-set-bit-fail-limit.html" class="function">fann_set_bit_fail_limit()</a></span>).
The bits are counted in all of the training data, so this number can be higher than the number of training data.
</p>
<p class="para">
This value is reset by <span class="function"><a href="function.fann-reset-mse.html" class="function">fann_reset_MSE()</a></span> and updated by all the same functions
which also updates the MSE value (e.g. <span class="function"><a href="function.fann-test-data.html" class="function">fann_test_data()</a></span>, <span class="function"><a href="function.fann-train-epoch.html" class="function">fann_train_epoch()</a></span>)
</p>
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<div class="refsect1 parameters" id="refsect1-function.fann-get-bit-fail-parameters">
<h3 class="title">Parameters</h3>
<dl>
<dt>
<span class="term"><em><code class="parameter">ann</code></em></span>
<dd>
<p class="para">Neural network <span class="type"><a href="language.types.resource.html" class="type resource">resource</a></span>.</p>
</dd>
</dt>
</dl>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.fann-get-bit-fail-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
The number of bits fail, or <strong><code>FALSE</code></strong> on error.
</p>
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<div class="refsect1 seealso" id="refsect1-function.fann-get-bit-fail-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.fann-get-mse.html" class="function" rel="rdfs-seeAlso">fann_get_MSE()</a> - Reads the mean square error from the network</span></li>
<li class="member"> <span class="function"><a href="function.fann-reset-mse.html" class="function" rel="rdfs-seeAlso">fann_reset_MSE()</a> - Resets the mean square error from the network</span></li>
<li class="member"> <span class="function"><a href="function.fann-test-data.html" class="function" rel="rdfs-seeAlso">fann_test_data()</a> - Test a set of training data and calculates the MSE for the training data</span></li>
<li class="member"> <span class="function"><a href="function.fann-train-epoch.html" class="function" rel="rdfs-seeAlso">fann_train_epoch()</a> - Train one epoch with a set of training data</span></li>
<li class="member"> <span class="function"><a href="function.fann-get-bit-fail-limit.html" class="function" rel="rdfs-seeAlso">fann_get_bit_fail_limit()</a> - Returns the bit fail limit used during training</span></li>
<li class="member"> <span class="function"><a href="function.fann-set-bit-fail-limit.html" class="function" rel="rdfs-seeAlso">fann_set_bit_fail_limit()</a> - Set the bit fail limit used during training</span></li>
</ul>
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