我试图找出Classificationdataset的参数target可以用来做什么，但我还是不清楚。在

我所做的一切>>> from pybrain.datasets import ClassificationDataSet

>>> help(ClassificationDataSet)

Help on class ClassificationDataSet in module pybrain.datasets.classification:

class ClassificationDataSet(pybrain.datasets.supervised.SupervisedDataSet)

| Specialized data set for classification data. Classes are to be numbered from 0 to nb_classes-1.

|

| Method resolution order:

| ClassificationDataSet

| pybrain.datasets.supervised.SupervisedDataSet

| pybrain.datasets.dataset.DataSet

| pybrain.utilities.Serializable

| __builtin__.object

|

| Methods defined here:

|

| __add__(self, other)

| Adds the patterns of two datasets, if dimensions and type match.

|

| __init__(self, inp, target=1, nb_classes=0, class_