On Dec 6, 2007 6:11 AM, Martin Maechler <[EMAIL PROTECTED]> wrote:
> > "MS" == Marc Schwartz <[EMAIL PROTECTED]>
> > on Wed, 05 Dec 2007 12:43:50 -0600 writes:
>
> []
>
>MS> Martin,
>
>MS> Thanks for the corrections. In hindsight, now seeing the intended use
> of
>
> "MS" == Marc Schwartz <[EMAIL PROTECTED]>
> on Wed, 05 Dec 2007 12:43:50 -0600 writes:
[]
MS> Martin,
MS> Thanks for the corrections. In hindsight, now seeing the intended use of
MS> ecdf() in the fashion you describe above, it is now clear that my
MS> a
On Wed, 2007-12-05 at 18:42 +0100, Martin Maechler wrote:
> I'm coming late to this, but this *does* need a correction
> just for the archives !
>
> > "MS" == Marc Schwartz <[EMAIL PROTECTED]>
> > on Sat, 01 Dec 2007 13:33:21 -0600 writes:
>
> MS> On Sat, 2007-12-01 at 18:40 +000
I'm coming late to this, but this *does* need a correction
just for the archives !
> "MS" == Marc Schwartz <[EMAIL PROTECTED]>
> on Sat, 01 Dec 2007 13:33:21 -0600 writes:
MS> On Sat, 2007-12-01 at 18:40 +, David Winsemius wrote:
>> David Winsemius <[EMAIL PROTECTED]> wrot
Ah so ! Thank you .
--- Gabor Grothendieck <[EMAIL PROTECTED]>
wrote:
> Its a bit tricky if you want to get it to work
> exactly the same as
> Excel even in the presence of runs but in terms of
> the R approx function
> I think percentrank corresponds to ties = "min" if
> the value is among those
Its a bit tricky if you want to get it to work exactly the same as
Excel even in the presence of runs but in terms of the R approx function
I think percentrank corresponds to ties = "min" if the value is among those
in the table and ties = "ordered" otherwise so:
percentrank <- function(table, x =
--- David Winsemius <[EMAIL PROTECTED]> wrote:
> "tom soyer" <[EMAIL PROTECTED]> wrote in
>
news:[EMAIL PROTECTED]:
>
>
> > John,
> >
> > The Excel's percentrank function works like this:
> if one has a number,
> > x for example, and one wants to know the
> percentile of this number in
> > a g
On Sat, 2007-12-01 at 18:40 +, David Winsemius wrote:
> David Winsemius <[EMAIL PROTECTED]> wrote in
> news:[EMAIL PROTECTED]:
>
> > "tom soyer" <[EMAIL PROTECTED]> wrote in
> > news:[EMAIL PROTECTED]:
> >
> >> John,
> >>
> >> The Excel's percentrank function works like this: if one has a
David Winsemius <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> "tom soyer" <[EMAIL PROTECTED]> wrote in
> news:[EMAIL PROTECTED]:
>
>> John,
>>
>> The Excel's percentrank function works like this: if one has a number,
>> x for example, and one wants to know the percentile of this numbe
"tom soyer" <[EMAIL PROTECTED]> wrote in
news:[EMAIL PROTECTED]:
> John,
>
> The Excel's percentrank function works like this: if one has a number,
> x for example, and one wants to know the percentile of this number in
> a given data set, dataset, one would type =percentrank(dataset,x) in
> Exc
John,
The Excel's percentrank function works like this: if one has a number, x for
example, and one wants to know the percentile of this number in a given data
set, dataset, one would type =percentrank(dataset,x) in Excel to calculate
the percentile. So for example, if the data set is c(1:10), and
I don't see one but that means nothing. I think you
can write such a function in a few minutes
Will something like this work or am I
missunderstanding what Excel's percentrank does ?
aa <- rnorm(25); aa # data vector
percentrank <- function(x) {
var <- sort(x)
p.rank <- 1:length(var)/lengt
Hi,
Does anyone know if R has a built-in function that is equvalent to Excel's
percentrank, i.e., returns the rank of a value in a data set as a percentage
of the data set?
Thanks,
--
Tom
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