Nothing
`is.gap` <-
function(x, gap.char=c("-",".")) {
if(is.pdbs(x) || inherits(x, "fasta")) {
return( colSums( matrix( as.logical(is.na(x$ali)+(x$ali %in% gap.char)),
ncol=ncol(x$ali)) ) > 0 )
} else {
return( as.logical( is.na(x) + (x %in% gap.char) ) )
}
}
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