Initialize dscore as a list

[jdblischak]

When I tried running sumStats() with an example dataset, I got the following error:

ss <- sumStats(prefix)
## Error: invalid assignment for reference class field ‘dscore’, should be from
## class “list” or a subclass (was class “matrix”)invalid assignment for reference
## class field ‘dscore’, should be from class “list” or a subclass (was class
## “array”)

Since you specified that dscore should be a list:

apex2R/Apex2R.r

Line 39 in 742403b

"dscore" = "list",

I changed sapply() to lapply() to avoid simplifying the list to a matrix:

apex2R/Apex2R.r

Line 78 in 742403b

dscore = sapply(ds, function(x) x[-c(1:4)]),

After making this change, then I was able to import my example data with sumStats().