Dear Sir,

Thanks a lot for your great help. I couldn't have figured it out. 

Thanks again.

Regards

Katherine

--- On Tue, 26/3/13, D. Rizopoulos <d.rizopoulos@erasmusmc.nl> wrote:

From: D. Rizopoulos <d.rizopoulos@erasmusmc.nl>
Subject: Re: [R] Counting various elemnts in a vactor
To: "Katherine Gobin" <katherine_gobin@yahoo.com>
Cc: "r-help@r-project.org" <r-help@r-project.org>
Date: Tuesday, 26 March, 2013, 8:23 AM

try this:

df <- c("F", "C", "F", "B", "D", "A", "D", "D", "A", "F", "D", "F", "B", 
    "C")

tab <- table(df)
tab
rep(names(tab), 100 * tab)


I hope it helps.

Best,
Dimitris


On 3/26/2013 9:12 AM, Katherine Gobin wrote:
> Dear R forum
>
> I have a vector say as given below
>
> df = c("F", "C", "F", "B", "D", "A", "D", "D", "A", "F", "D", "F", "B",    "C")
>
> I need to find
>
> (1) how many times each element occurs? e.g. in above vector F occurs 4 times, C occurs 2 times etc.
>
> (2) Depending on the number of occurrences, I need to repeat the element 100 times of the occurrences e.g. I need to repeat F 6 * 100 = 600 times, C 2*100 = 200 times.
>
> I can manage the second part i.e. repeating but I am not able to count the number of times the element is appearing in a given vector.
>
> Kindly guide
>
> Katherine
>
>
>
>
>
>
>
>
>
>
>
>     [[alternative HTML version deleted]]
>
>
>
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>

-- 
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/
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