Thanks a lot. That solves the problem :)
best,
salih

On Sat, Jun 25, 2011 at 9:13 AM, Dimitris Rizopoulos <
d.rizopoulos@erasmusmc.nl> wrote:

> yet another solution is:
>
>
> v <- c(1, 2, 6, 5)
> w <- matrix(c(1, 4, 3, 5, 8, 10), ncol = 2, byrow = TRUE)
>
> check <- outer(w[, 1], v, "-") * outer(w[, 2], v, "-")
> v[which(check <= 0, arr.ind = TRUE)[, 2]]
>
>
> Best,
> Dimitris
>
>
>
> On 6/24/2011 10:05 PM, Martin Morgan wrote:
>
>> On 06/24/2011 11:12 AM, Dennis Murphy wrote:
>>
>>> Hi:
>>>
>>> Not much different from Peter's approach, but here's another try:
>>>
>>> v<- c(1, 2, 6, 5)
>>> w<- matrix(c(1, 4, 3, 5, 8, 10), ncol = 2, byrow = TRUE)
>>>
>>>> w
>>>>
>>> [,1] [,2]
>>> [1,] 1 4
>>> [2,] 3 5
>>> [3,] 8 10
>>>
>>>
>>> f<- function(x) v[which(v>= x[1]& v<= x[2])]
>>> unlist(apply(w, 1, f))
>>> [1] 1 2 5
>>>
>>> If you just do the apply() part, the function will return a list of
>>> those elements of v that fall within the i-th interval.
>>>
>>
>> Maybe
>>
>>  > v = c(1, 2, 6, 5)
>>  > start = c(-Inf, 1, 3, 8)
>>  > end = c(-Inf, 4, 5, 10)
>>  > v[ v <= end[findInterval(v, start)] ]
>>
>> Also IRanges::findOverlaps / countOverlaps in Bioconductor
>>
>> v[countOverlaps(IRanges(v, v), IRanges(start, end)) != 0]
>>
>> http://bioconductor.org/**install <http://bioconductor.org/install>
>>
>> Martin
>>
>>
>>> HTH,
>>> Dennis
>>>
>>> On Fri, Jun 24, 2011 at 9:52 AM, Salih Tuna<salihtuna@gmail.com> wrote:
>>>
>>>> Hi guys,
>>>>
>>>> let's assume i have the following
>>>>
>>>> 1
>>>> x = 2
>>>> 6
>>>> 5
>>>>
>>>> 1 4
>>>> y = 3 5
>>>> 8 10
>>>>
>>>> i want the code to report back 1, 2 and 5 from x.
>>>> Basically it shopuld check whether each elements of x falls in the
>>>> range of
>>>> each row of x. 1 and 2 falls in between 1-4 and 5 falls in between 3-5.
>>>> I do this with two for loops but in the case of very large list, it
>>>> takes
>>>> ages.
>>>>
>>>> best,
>>>> salih
>>>>
>>>>
>>>> On Fri, Jun 24, 2011 at 4:12 PM, Dennis Murphy<djmuser@gmail.com>
>>>> wrote:
>>>>
>>>>>
>>>>> Hi:
>>>>>
>>>>> That leaves open several possibilities. Could you please supply a
>>>>> small, reproducible example (i.e., one that someone can copy and paste
>>>>> into an R session) that illustrates the problem along with the
>>>>> solution you expect?
>>>>>
>>>>> TIA,
>>>>> Dennis
>>>>>
>>>>> On Fri, Jun 24, 2011 at 2:30 AM, Salih Tuna<salihtuna@gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hi Dimitris,
>>>>>> Thanks for your reply. But this is not exactly what i am after. I want
>>>>>> to
>>>>>> find the probes that falls into certain regions. In your solution it
>>>>>> will
>>>>>> ignore the second probe if it falls into the same region as the first
>>>>>> one.
>>>>>> Is there any vector trickb uilt in R to find whether probes fall into
>>>>>> certain regions?
>>>>>> best,
>>>>>> salih
>>>>>>
>>>>>> On Fri, Jun 24, 2011 at 10:23 AM, Dimitris Rizopoulos<
>>>>>> d.rizopoulos@erasmusmc.nl> wrote:
>>>>>>
>>>>>> One approach is the following:
>>>>>>>
>>>>>>> x<- rnorm(5)
>>>>>>> y<- matrix(rnorm(5*2), 5, 2)
>>>>>>>
>>>>>>> check<- y - x
>>>>>>> check[, 1] * check[, 2]< 0
>>>>>>>
>>>>>>>
>>>>>>> I hope it helps.
>>>>>>>
>>>>>>> Best,
>>>>>>> Dimitris
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On 6/24/2011 10:57 AM, Salih Tuna wrote:
>>>>>>>
>>>>>>> Hi All,
>>>>>>>> What is the fastest way of finding if any members of vector x
>>>>>>>> fall in
>>>>>>>> the
>>>>>>>> range of the rows of matrix y?
>>>>>>>> I do not want to use two for loops as this will take forever.
>>>>>>>> Any help will be appreciated,
>>>>>>>> best,
>>>>>>>> salih
>>>>>>>>
>>>>>>>> [[alternative HTML version deleted]]
>>>>>>>>
>>>>>>>> ______________________________****________________
>>>>>>>> R-help@r-project.org mailing list
>>>>>>>>
>>>>>>>> https://stat.ethz.ch/mailman/****listinfo/r-help<https://stat.ethz.ch/mailman/**listinfo/r-help>
>>>>>>>> <https://stat.**ethz.ch/mailman/listinfo/r-**help<https://stat.ethz.ch/mailman/listinfo/r-help>
>>>>>>>> >
>>>>>>>>
>>>>>>>> PLEASE do read the posting guide http://www.R-project.org/**<http://www.r-project.org/**>
>>>>>>>> posting-guide.html<http://www.**r-project.org/posting-guide.**html<http://www.r-project.org/posting-guide.html>
>>>>>>>> >
>>>>>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>> Dimitris Rizopoulos
>>>>>>> Assistant Professor
>>>>>>> Department of Biostatistics
>>>>>>> Erasmus University Medical Center
>>>>>>>
>>>>>>> Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
>>>>>>> Tel: +31/(0)10/7043478
>>>>>>> Fax: +31/(0)10/7043014
>>>>>>> Web:
>>>>>>> http://www.erasmusmc.nl/****biostatistiek/<http://www.erasmusmc.nl/**biostatistiek/>
>>>>>>> <http://www.**erasmusmc.nl/biostatistiek/<http://www.erasmusmc.nl/biostatistiek/>
>>>>>>> >
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>> [[alternative HTML version deleted]]
>>>>>>
>>>>>> ______________________________**________________
>>>>>> R-help@r-project.org mailing list
>>>>>> https://stat.ethz.ch/mailman/**listinfo/r-help<https://stat.ethz.ch/mailman/listinfo/r-help>
>>>>>> PLEASE do read the posting guide
>>>>>> http://www.R-project.org/**posting-guide.html<http://www.r-project.org/posting-guide.html>
>>>>>> and provide commented, minimal, self-contained, reproducible code.
>>>>>>
>>>>>>
>>>>
>>>>
>>> ______________________________**________________
>>> R-help@r-project.org mailing list
>>> https://stat.ethz.ch/mailman/**listinfo/r-help<https://stat.ethz.ch/mailman/listinfo/r-help>
>>> PLEASE do read the posting guide
>>> http://www.R-project.org/**posting-guide.html<http://www.r-project.org/posting-guide.html>
>>> and provide commented, minimal, self-contained, reproducible code.
>>>
>>
>>
>>
> --
> Dimitris Rizopoulos
> Assistant Professor
> Department of Biostatistics
> Erasmus University Medical Center
>
> Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
> Tel: +31/(0)10/7043478
> Fax: +31/(0)10/7043014
> Web: http://www.erasmusmc.nl/**biostatistiek/<http://www.erasmusmc.nl/biostatistiek/>
>

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