[R] How to set up a function for "Central Limit Theorem"
p.dalgaard at biostat.ku.dk
Mon Mar 23 19:42:20 CET 2009
> I tried using the for (i..) to make 1000 differents sets of numbers, but then
> I dont know how to get the mean value of all of them... because I dont even
> think 1000 different sets of numbers were made, because when i print it it
> always shows me the same values, basically I dont know how to replicate the
> funcion many times.
replicate() is your friend. Don't know why you get the same numbers
multiple times though.
> stephen sefick wrote:
>> On Mon, Mar 23, 2009 at 1:30 PM, pfc_ivan <pfc_ivan at hotmail.com> wrote:
>>> Hello guys, I am stuck here:
>>> How do I make 1000 samples of n = 10 observations from an Exponential
>>> distribution and then compute the mean for all those 1000 samples?
>>> Basically I need to prove the Central Limit theorem, which states:
>>> Where the Sn is sum of random variables, n we have from the question, mu
>>> mean and (sigma)^2 is variance.
>>> I am having trouble setting up the function to do this.
>>> Any help apreciated!
>>> View this message in context:
>>> Sent from the R help mailing list archive at Nabble.com.
>>> R-help at r-project.org mailing list
>>> PLEASE do read the posting guide
>>> and provide commented, minimal, self-contained, reproducible code.
>> Stephen Sefick
>> Let's not spend our time and resources thinking about things that are
>> so little or so large that all they really do for us is puff us up and
>> make us feel like gods. We are mammals, and have not exhausted the
>> annoying little problems of being mammals.
>> -K. Mullis
>> R-help at r-project.org mailing list
>> PLEASE do read the posting guide
>> and provide commented, minimal, self-contained, reproducible code.
O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B
c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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