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help for spellmerge                                                 (E. Leuven)
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Merge adjacent records of time-span data

        spellmerge, spell(start end) [by(varlist) gap(days)]

Description

spellmerge merges observations of timespan data that are adjacent.

     id      date0     date1
1.    1   1jan2000  2jan2000
2.    1   2jan2000  8jan2000
3.    1  12jan2000 20jan2000

becomes

     id      date0     date1
1.    1   1jan2000  8jan2000
3.    1  12jan2000 20jan2000


Options

by(varlist) specify subset within which merging must take place. Usually an
    identifyer, but typically should include time-varying characteristics as
    well.

gap(days) specify maximum gap (in days) between spell for it to be considered
    adjacent. Default is zero.


Author

E. Leuven, Department of Economics, University of Amsterdam. If you observe any