Every sample is repeated？

[anmilky]

hi, may u explain the reason why every sample is repeated？
i saw every sample is repeated and each sample is marked twice, cfunc and cppfunc respectively。
may i ask you why?
Are these data separated during training?

[VulDeePecker]

These code gadgets are generated by different rules by Checkmarx. The training programs are separated from the target programs, that is, the programs for training are not used as the target programs for testing.