说明：  bp神经网络进行交通预测的Matlab源代码 数据为1986年到2000年的交通量 ，网络为3输入，1输出 15组数据，其中9组为正常训练数据，3组为变量数据，3组为测试数据
(Matlab source code for traffic prediction by BP neural network The data is the traffic volume from 1986 to 2000. The network is 3 input and 1 output. 15 groups of data, of which 9 groups were normal training data, 3 groups were variable data, and the 3 group was test data.)