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<fann_get_bias_arrayfann_get_bit_fail_limit>
^Fann FunctionsLast updated: Mon, 26 Oct 2026

fann_get_bit_fail

(PECL fann >= 1.0.0)

fann_get_bit_fail — The number of fail bits

Description

function fann_get_bit_fail(resource $ann): int

The number of fail bits; means the number of output neurons which differ more than the bit fail limit (see fann_get_bit_fail_limit(), fann_set_bit_fail_limit()). The bits are counted in all of the training data, so this number can be higher than the number of training data.

This value is reset by fann_reset_MSE() and updated by all the same functions which also updates the MSE value (e.g. fann_test_data(), fann_train_epoch())

Parameters

ann

Neural network resource.

Return Values

The number of bits fail, or false on error.

See Also


<fann_get_bias_arrayfann_get_bit_fail_limit>
^Fann FunctionsLast updated: Mon, 26 Oct 2026