[datatable-help] A good way of using data.table with a date index

[Matthew Dowle]

Hi,
How about ?IDateTime.
Matthew

On Tue, 2011-07-26 at 14:07 -0400, Chris Neff wrote:
> Hi all, 
> 
> 
> I often have a date index in a data frame that I don't really care to
> keep as a time series because I don't do any sort of smoothing or
> anything, but I prefer to keep it as a date class (or POSIXct or
> whatever) so I can do things like only get data past a certain date,
> or so plots will format correctly.
> 
> 
> I've found that any time I time to make a date class a key variable it
> complains that it can't be converted to integer without losing
> information. I've had to resort to saving them as factors and then
> using as.POSIXct whenever i want them as dates, which is annoying and
> error prone.
> 
> 
> Does anyone have a better way? POSIXct supports all standard equality
> functions, and (I'm pretty sure) you can just convert into unix
> seconds without losing anything, so why does it complain?
> 
> 
> -Chris
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