[R] align

[Omar Lakkis]

>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 at 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 at 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
> >
> > ______________________________________________
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> >
>