请各位大侠帮忙看看下面的问题。

    利用makekinship函数生成bdsmatrix时, 总是出现problem

ekmat2=makekinship(dataFAM,data$famid,data$dad, data$mom)
Problem in makekinship(extended$FAM, extended$famid, extended$dad, extended$mom): Subject id values must be distinct
Use traceback() to see the call stack


  在kinship中也出现同样的问题。
kin2<-kinship(data$famid,data$dad,data$mom)
Problem in kinship(ext$famid, ext$dadid, ext$momid): All id values must be unique
Use traceback() to see the call stack

非常感谢！