fisher.test error

[marctormo]

Hi,

I'm getting an error while running scde.expression.difference and I don't know how to solve it:

ediff.batch <- scde.expression.difference(o.ifm.all, cd, o.prior, groups = groups,
batch = placa, n.randomizations = 100,
n.cores = 4, return.posteriors = TRUE,
verbose = 1)
Error in fisher.test(bgti) :
FEXACT error 7(location). LDSTP=18630 is too small for this problem,
(pastp=31.6012, ipn_0:=ipoin[itp=394]=1202, stp[ipn_0]=48.0325).
Increase workspace or consider using 'simulate.p.value=TRUE

Do you have any idea?
Many thanks!