David and team at CDC have used a variation on longwide() which allows for a rolling time window specified in days as a tolerance for aligning heights and weights into "matched" observations for the purposes of calculating BMI, etc.
71 addresses enhancements to the existing longwide() which won't fundamentally change how it behaves. Consider adding a new function designed to work with a time window.
David and team at CDC have used a variation on
longwide()which allows for a rolling time window specified in days as a tolerance for aligning heights and weights into "matched" observations for the purposes of calculating BMI, etc.71 addresses enhancements to the existing
longwide()which won't fundamentally change how it behaves. Consider adding a new function designed to work with a time window.