Re: [R] align

From: Omar Lakkis <uofiowa_at_gmail.com>
Date: Thu 19 May 2005 - 03:29:00 EST

>From the definition of locf
 

> locf

function (x)
{

    if (!inherits(x, "its"))

        stop("function is only valid for objects of class 'its'")     y <- x
    jna <- which(apply(is.na(x), 2, any))     for (j in jna) { y[, j] <- y[most.recent(!is.na(y[, j])), j] }     return(y)

}

Where is the function most.recent? It si not in its.

On 5/18/05, Gabor Grothendieck <ggrothendieck@gmail.com> wrote:
> Check out the 'locf' function in the 'its' package and the 'na.locf'
> function in the 'zoo' package.
>
> On 5/18/05, Omar Lakkis <uofiowa@gmail.com> wrote:
> > Is there a function in R that is similar to Splus's align?
> >
> > The idea is, if I have a data.frame, or an its object that is like this:
> >
> > 2002-01-03 5
> > 2002-01-04 NA
> > 2002-01-05 7
> > 2002-01-06 NA
> >
> > I want to align it by the last value to this:
> >
> > 2002-01-03 5
> > 2002-01-04 5
> > 2002-01-05 7
> > 2002-01-06 7
> >
> > TITLE:
> > Function align
> >
> > USAGE:
> > align(x, pos, how, error.how, localzone, matchtol, by, k.by,
> > week.align, holidays)
> >
> > ARGUMENTS:
> > x: argument, no default.
> > pos: argument, no default.
> > how: argument, `default = "NA".'
> > error.how: argument, `default = "NA".'
> > localzone: argument, `default = F.'
> > matchtol: argument, `default = 0.'
> > by: argument, no default.
> > k.by: argument, `default = 1.'
> > week.align: argument, `default = NULL.'
> > holidays: argument, `default = timeDate().'
> >
> > DESCRIPTION:
> >
> > Align series object x to new positions
> >
> > ______________________________________________
> > R-help@stat.math.ethz.ch mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
> >
>



R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Thu May 19 03:33:10 2005

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