Null values within a sequence.

[Dekermanjian]

HI, I am trying to use D3partionR package to graph a sequence. My sequence has areas where a shorter sequence will have NA values to fill out the data.frame for the longer sequences. For example seq A -> seq B -> seq C -> NA -> NA seq A -> serb -> seq C -> seq D -> seq E.

When I try to plot the partition I get this error: 'Error in if (length(nms) != n || any(nms == "")) stop("'options' must be a fully named list, or have no names (NULL)") : missing value where TRUE/FALSE needed'

Is there a way to by pass the NAs in my data.frame?