Thanks all, I fixed it.

On Wed, Jan 13, 2010 at 2:47 PM, Don MacQueen <macq@llnl.gov> wrote:

> If I do
>
>   b <- rnorm(4332)
>   hist(b,probability=T,breaks=30,col='lightblue',ylim=c(0,1))
>   rug(b)
>
> The plot looks entirely reasonable.
>
> As far as being different from SAS, perhaps SAS and R use different
> breakpoints, that is, different boundaries between the histogram bars.
>
> -Don
>
> At 11:58 AM -0600 1/13/10, Yi Du wrote:
>
>> Hi,
>>
>>
>> I use a vector of data to draw the histogram, but it is different from the
>> graph by SAS. Can you check it for me please?
>>
>> b is a column vector of 4332
>>
>> hist(b,probability=T,breaks=30,col='lightblue',ylim=c(0,1))
>> rug(b)
>>
>> When I used rug, I find the records are smaller than 4332. I don't know
>> where I did wrong.
>>
>> Thanks.
>>
>> --
>> Yi Du
>>
>>        [[alternative HTML version deleted]]
>>
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>>
>
>
> --
> --------------------------------------
> Don MacQueen
> Environmental Protection Department
> Lawrence Livermore National Laboratory
> Livermore, CA, USA
> 925-423-1062
> --------------------------------------
>



-- 
Yi Du
Ph. D student in Economics
University of Missouri
Department of Economics
118 Professional Building
Columbia MO  65211
1-573-239-6467

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