Or see "mergeSeries" in package 'tis'.
--
Jeff
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained,
If you can wait a day or two, the next version (1.18) of the 'tis' package that
I will put on CRAN very soon has a function called "tierChart" that does
what you want with a 'tis' series.
--
Jeff
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Well, as the author of two CRAN packages with short names (tis and
fame), I maintain that short names can be fairly informative. The fame
package is an interface to FAME time series databases, and the tis
package implements the tis (TimeIndexedSeries) class and support classes
that it needs.
When
I know nothing about your package, but "list" is a terrible name for it,
as "list" is also the name of a data type in R.
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Jeff
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Gabor Grothendieck writes:
> Try this:
>
>> mx <- formals(identity)$x
>> missing(mx)
> [1] TRUE
>> sin(mx)
> Error in sin(mx) : 'mx' is missing
Neat. There's no way to look at 'mx' because calling any function
with it as an argument gives that same error message, including the auto
print function
jhall...@frb.gov writes:
Answering my own question here, so you can ignore this unless you are
really interested in some fairly obscure stuff. It turns out that this works:
singleIndex <- missing(j) && (length(sys.call()) == length(match.call()))
since sys.call() has an element for the empty ar
Abiel X Reinhart writes:
> I have two identically sized matrices of data that represent time series (I
> am storing the data in zoo objects, but the idea should apply to any matrix
> of data). The time series in the second matrix extend further than in the
> first matrix, and I would like to u
Take a look at the 'ti' stuff in the tis package on CRAN. If I
understand you correctly, you want something like this:
weekNumber <- function(aDate){
aTi <- ti(aDate, tif = "wfriday")
may1ymd <- 1*year(aTi) + 501
baseWeek <- ti(may1ymd, tif = "wfriday")
return(aTi - baseWeek +
Or for real power and flexibility, see the 'convert()' function in package
tis.
Jeff
Gabor Grothendieck writes:
> See ?aggregate.zoo, e.g.
>
> library(zoo)
> z <- zoo(1:1000, as.Date("2000-01-01") + 0:999)
> aggregate(z, as.yearmon, mean)
>
> or replace mean with whatever summarization you want.
Hmmm, I sense a story in the offing. Was that an accidental emergency, or one
you created?
Frank E Harrell Jr writes:
> I differ with Marc in one way. It is amazing what people can learn when you
> create an emergency for them to do so.
>
> Frank
> --
> Frank E Harrell Jr Professor and Chair
I am the maintainer of the 'tis' package. One of the functions in my package
is 'nberShade'. A user wants to make nberShade generic, with the old version
renamed as nberShade.default, all of which is fine with me. And he wants to
add a new method, nberShade.ggplot, which works for objects of cla
"Stephen J. Barr" writes:
> I have two time series (ts) objects, 1 is yearly (population) and the
> other is quarterly (bankruptcy statistics). I would like to produce a
> quarterly time series object that consists of bankruptcy/population.
> Is there a pre-built function to intelligently divide t
Rolf Turner writes:
> Despite the knowledge, wisdom, insight, skill, good looks, and other
> admirable characteristics of the members of the R-help list, few of
> us are skilled in telepathy or clairvoyance.
Oh, yeah? Then how did I know you were going to say that, huh?
--
Jeff
__
Here's how I do this:
The last lines of my .First() function are these:
## Run command line program if there is one
if(length(.cmd <- commandArgs(trailingOnly = TRUE)) > 0)
try(source(textConnection(.cmd), echo = T, prompt.echo = "> "))
and on my Linux path I have this csh script, called "runR"
Yes, it's called Ocular Econometrics. You plot both series on the same chart
and use your onboard pattern detector. If you can't see it on the plot, it's
unlikely that any correlations you find in other ways will have much
predictive power, and that's the only kind of relationship that counts.
I
My bad. I used system("test -r blah") to see if a file was readable,
forgetting that not all Windows installations have the "test" program (from
Cygwin) installed. I've changed this to use the R function file.access() in
version 2.5, which I've just submitted to CRAN. The Windows binary should b
The article quotes John Chambers, but it doesn't mention that R started out as
an implementation of the S language. I don't suppose Insightful is too happy
about that.
The SAS spokesman quoted in the article is clearly whistling past the graveyard.
--
Jeff
__
[EMAIL PROTECTED] writes:
> List,
>
> I am using the 'tisPlot' function in Jeff Hallman's excellent tis package
> and was hoping that someone could spare me from having to dig into the
> code of his 'tisPlot' function. So far as I can tell, the preferred
> method of controlling the plotting of
I am the author of the 'fame' package, and I can confirm that earlier versions
did indeed use Greg Warnes addLast() function to add to the user's .Last()
function. The current version no longer does so.
Jeff
Dan Slayback <[EMAIL PROTECTED]> writes:
> Thanks very much for the tips. Simply remo
"hadley wickham" <[EMAIL PROTECTED]> writes:
> dates <- structure(c(8516, 8544, 8568, 8596, 8609, 8666, 8701, 8750, 8754,
> 8798, 8811, 8817, 8860, 8873, 8918, 8931, 8966, 9020, 9034, 9056
> ), class = "Date")
>
>> range(dates)
> [1] "1993-04-26" "1994-10-18"
>> as.Date(ti(range(dates), "monthly")
Look at the ti (Time Index) class in package tis. Here's some examples I just
did:
> x <- Sys.Date()
> x
[1] "2008-09-11"
> ti(x, "wsaturday") ## a ti for the week that x falls into
[1] 20080913
class: ti
> ti(x + 1, "wsaturday") - 1 ## ti for the latest complete week
[1] 20080906
class:
Or look at the fame package, which has ti (TimeIndex) and tis
(TimeIndexedSeries) classes that handle this kind of problem. I think it's
simpler and faster than the zoo stuff, but then I would say that, since I
wrote it.
Jeff
"stephen sefick" <[EMAIL PROTECTED]> writes:
> I don't know if this wi
"tom soyer" <[EMAIL PROTECTED]> writes:
> (1) how do I encapsulate the generics? i.e., if a class has 100 methods,
> then does it mean 100 generics would be dumped in the global environment?
> Or, is it possible to define a local environment and restrict the generics
> from one class to a particula
Frank E Harrell Jr <[EMAIL PROTECTED]> writes:
> Rob Robinson wrote:
>> I wonder if those who complain about SAS as a programming environment have
>> discovered SAS/IML which provides a programming environment akin to Matlab
>> which is more than capable (at least for those problems which can be t
SAS has no facilities for date arithmetic and no easy way to build it
yourself. In fact, that's the biggest problem with SAS: it stinks as a
programming environment, so it's always much more difficult than it should be
to do something new. As soon as you get away from the canned procs and have
to
Jonathan Baron <[EMAIL PROTECTED]> writes:
> I think it is worth pointing out that, if you use ESS with (X)emacs,
> " <- " (with spaces) is produced when you type "_". It requires only two
> keystrokes (shift and -), and the spaces are done for you. The = sign
> requires three because you need to
SAS programming is easy if everything you want to do fits easily into the
row-at-a-time DATA step paradigm. If it doesn't, you have to write macros,
which are an abomination. DATA step statements and macros are entirely
different programming languages, with one doing evaluations at "compile" time
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