Repeat headers when using xtable with longtable option

Question

Is there a way to repeat the top row / set headers when generating an xtable with a longtable option ?

For eg., if I have

tableSb <- xtable(df, captio         


        

Answer 1

Looking at the code for print.xtable, the only considerations it makes when tabular.environment="longtable" are

• Emitting a warning if you also set floating=TRUE
• Putting the caption in the right place for a longtable (top or bottom)

It does not emit the code specific for repeating the headers on subsequent pages. Check out latex in the Hmisc package. I know it has support for longtables as well, but I don't recall if it repeats headers correctly.