Individual weights of those whose household questionnaires are not available
According to my understanding, the individual weights take into account predicted household response probability. However, I find that the weights for those individuals whose household questionnaires (w_hhresp) are not available are not zero (e.g. people whose household ids are 1297691602 1362862802 1436119202 in wave 2). I am wondering how to model the household response probability when their household questionnaires are not available?