Determing end date of cohabitation spell
In our research, we are trying to compute a variable for duration (in months) since end of cohabiting spell.
In order to compute this, we need to know the end date of each cohabitation spell. Our question relates to cases in which a respondent was in a cohabiting relationship at wave t of Understanding Society, but is no longer in a cohabiting relationship at the next wave in which he participated. Which variable can we use to determine the end date of the cohabitation in which the respondent was involved at wave t?
By the way, we noticed that there is a variable which relates to the end date of a cohabiting spell (lmcbm), but we noticed that this variable has valid responses only for persons who were in a cohabiting spell at wave t and were in a cohabiting spell with a different partner in the next wave in which he participated. (See variable description attached)
In a related question, we were curious about the meaning of the abbreviation ml, which is used in the variable description for the variable lmcbm, as well as other variables.