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The only database access package I see on CRAN is DBI. But is there a PostgreSQL driver for it yet? (where?) There is no sign of an RPgSQL package on CRAN either. What to do? Thanks, Bruce L. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help...
When I do this (highly simplified example): plot(as.POSIXct(c("1984-01-01","1984-01-02")), c(1,2), col=2) I get a partially red (col=2) x-axis between and including the first and last tick marks...
Have 3.5 years daily data that I want to convert to weekly. Looking for something like SAS's "expand" function, where you can specify the conversion function (sum, average, etc.) and get a new vector out with different sampling...
The bug reported above for "spline" is probably related to a similar problem with sequencing in POSIX dates. For example this works ok: > seq(from=1,to=4,out.length=4) [1] 1 2 3 4 But the following gives...
# Is this a bug or something I don't understand? spline(date, stor, n=52, xmin=mind, xmax=maxd) # gives length(x) of 53 ????, but y has the expected length of 52 # Shouldn't they be the same length? From...
>Have 3.5 years daily data that I want to convert to weekly. Looking for something > like SAS's "expand" function, where you can specify the conversion function (sum, > average, etc.) and get a new vector out with different sampling...
Thanks to Jason Turner and others for their comments. I still have to decide whether the calendar (POSIXt) based week-of-year aggregates, or the constant 7-day aggregates (using aggregate.ts), are more appropriate for what I want to...
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