[R] most efficient plyr solution

Dear list members, Any help on this efficiency issue would be greatly appreciated. I would like to find the most efficient way to run a non-vectorized function (here: fisher exact test p-value) iteratively using 4 matrices with identical dimensions. And as a result I aim for an array with ident

[R] ordering of additional columns in forest plot in meta package

uot;n"), # sort order not right for 'rnd.subgroup1' and 'rnd.subgroup2' bylab=c("one","two"), sortvar=-n, col.i=rnd.subgroup1, col.by=c("royalblue"), xlim=c(0,.5) ) I suspect that it may have to do with