Herror ::learn_sampset_box (
    const HTuple &ClassifHandle,
    const HTuple &SampKey,
    const HTuple &Outfile,
    const HTuple &NSamples,
    const HTuple &StopError,
    const HTuple &ErrorN
)

Train the classificator with one data set.

::learn_sampset_box trains the classificator with data for the key SampKey (see ::read_sampset). The training sequence is terminated at least after NSamples examples. If NSamples is bigger than the number of examples in SampKey, then a cyclic start at the beginning occurs. If the error underpasses the value StopError, then the training sequence is prematurely terminated. StopError is calculated with N / ErrorN. Whereby N significates the number of examples which were wrong classified during the last ErrorN training examples. Typically ErrorN is the number of examples in SampKey and NSamples is a multiple of it. If you want a data set with 100 examples to run 5 times at most and if you want it to terminate with an error lower than 5, then the corresponding values are NSamples = 500, ErrorN = 100 and StopError = 0.05. A protocol of the training activity is going to be written in file Outfile.


Parameters

ClassifHandle (input_control)
class_box -> HTuple.long
Classificator's handle number.

SampKey (input_control)
feature_set -> HTuple.long
Number of the data set to train.

Outfile (input_control)
filename -> HTuple.char *
Name of the protocol file.
Default value: 'training_prot'

NSamples (input_control)
integer -> HTuple.long
Number of arrays of attributes to learn.
Default value: 500

StopError (input_control)
real -> HTuple.double
Classification error for termination.
Default value: 0.05

ErrorN (input_control)
integer -> HTuple.long
Error during the assignment.
Default value: 100


Result

::learn_sampset_box returns H_MSG_TRUE. An exception handling is raised if key SampKey does not exist or there are problems while opening the file.


Possible Predecessors

::create_class_box


Possible Successors

::test_sampset_box, ::enquire_class_box, ::write_class_box, ::close_class_box, ::clear_sampset


See also

::test_sampset_box, ::enquire_class_box, ::learn_class_box, ::read_sampset


Module

Tools



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