Re: [R] seeking advice about rounding error and %%

2011-08-14 Thread Uwe Ligges
Actually sapply(x %% 1, function(x) isTRUE(all.equal(x, 0))) seems to be the way to go. Uwe Ligges On 14.08.2011 07:17, Ken wrote: How about something like: If(round(x)!=x){zap} not exactly working code but might help Ken On Aug 13, 2554 BE, at 3:42 PM, Paul Johnson wrote: A client

Re: [R] seeking advice about rounding error and %%

2011-08-13 Thread Ken
How about something like: If(round(x)!=x){zap} not exactly working code but might help Ken On Aug 13, 2554 BE, at 3:42 PM, Paul Johnson wrote: > A client came into our consulting center with some data that had been > damaged by somebody who opened it in MS Excel. The columns were > supposed

Re: [R] seeking advice about rounding error and %%

2011-08-13 Thread Joshua Wiley
Hi Paul, What about using: x[x != as.integer(x)] <- NA I cannot think of a situation off hand where this would fail to turn every non integer to missing. I wonder if there is really a point to this? Can the client proceed with data analysis with any degree of confidence when an unknown mechani