getMD from SingleCellExperiment object

[baj12]

I am working with SingleCellExperiment objects.
It seems that SingleCellExperiment::colData returns a "DFrame" and that reshape2::dcast in CreateTemporaObject requires a data.frame.

suppressMessages(
  setMethod("getMD","SingleCellExperiment",
            function(x) SingleCellExperiment::colData(x))
)

[baj12]

Otherwise, I get an error message:

dcast Error in FUN(X[[i]], ...) : envir must be either NULL, a list, or an environment.

Replacing the above code in dataAccess.R with

suppressMessages(
  setMethod("getMD","SingleCellExperiment",
            function(x) data.frame(SingleCellExperiment::colData(x)))
)

resolves this issue.