On 2 Mar 2012 09:12, "Suranga Kasthurirathne" <surangakas@gmail.com> wrote:

> Hi, thank you very much for the advice. I'll try it out, and see where I
> can take it from there.
>
> @david, your point is noted. I will avoid  such mails in the future.
> On 2 Mar 2012 04:27, "Peter Ehlers" <ehlers@ucalgary.ca> wrote:
>
>> On 2012-03-01 13:52, John Kane wrote:
>>
>>> No it's an outlier problem, I think.
>>>
>>> If you have a fairly small number of sets of these numbers simple visual
>>> inspection of a boxplot for each set would probably acomplish what you want.
>>>
>>> Try this in R for an example. Just paste the next two lines into R
>>>
>>> xx<- c(1, 1, 2, 10, 100, 10,1)
>>> boxplot(xx)
>>>
>>
>> For graphical analysis, I would prefer plot(xx, type="h").
>> But "most different as compared to the others" is not
>> well-defined. Possibly something like scale(xx) would help.
>>
>> Peter Ehlers
>>
>>
>>> After this it gets more complicated, but it you're new here let's take
>>> it one step at a time
>>>
>>>
>>> John Kane
>>> Kingston ON Canada
>>>
>>>
>>>  -----Original Message-----
>>>> From: surangakas@gmail.com
>>>> Sent: Thu, 1 Mar 2012 09:30:59 -0800
>>>> To: r-help@r-project.org
>>>> Subject: [R] Standard variance / devistion clarification
>>>>
>>>> Dear gurus,
>>>>
>>>> Im a newbie, and I want to ask a very general question.
>>>> Assume that I have a set of numbers as follows,
>>>>
>>>> 1, 1, 2, 10, 100, 10,1
>>>>
>>>> > From these, I need to identify which number is the most different as
>>>> compared to others. (in this case, it will be 100, since its way larger
>>>> than the other numbers). It doesnt have to be specifically this way, but
>>>> I
>>>> need to identify which number(s) are most different compared to the
>>>> others.
>>>>
>>>> Any idea as to what I need to do this ? Im a math noob, so I'm also
>>>> going
>>>> to need to ask it this is called 'standard deviation' or 'variance' :-)
>>>>
>>>> --
>>>> Best Regards,
>>>>
>>>> Suranga
>>>>
>>>>        [[alternative HTML version deleted]]
>>>>
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>>>>
>>>
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>>
>>

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