How to combine two waves?
I have been referring to various literature available on how to combine the two waves in USoC and am a bit confused, either to use merge or append? Could you please guide me how to combine the entire datasets of Wave 1 and 2? And secondly how can I use the BHPS identifier - hidp and individual identifier - pidp, to identify the respondents from the BHPS? is there any literature available somewhere that might be useful?