R help - Nov 2008 - counting the number of elements in a column

Hi All,

I have a column that contains values between 0 and 1.  I would like to make
a table that consists of the number of elements in each category.

For example , how many elements have values between 0 and 0.1, 0.1 to 0.2,
0.2 to 0.3,etc??..0.9 to 1.

Is there an easy way to do this?

Thanks

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On Nov 18, 2008, at 12:50 AM, kayj wrote:
>
> Hi All,
>
> I have a column that contains values between 0 and 1.  I would like  
> to make
> a table that consists of the number of elements in each category.
>
> For example , how many elements have values between 0 and 0.1, 0.1  
> to 0.2,
> 0.2 to 0.3,etc??..0.9 to 1.
>
> Is there an easy way to do this?
?cut
?table

--
David Winsemius

Dear kayj,

Here is one way:

# Data
set.seed(123)
x=runif(100)

# Cuts
as.data.frame.table(table(cut(x,seq(0,1,by=0.1))))
#Var1 Freq
#1    (0,0.1]    7
#2  (0.1,0.2]   12
#3  (0.2,0.3]   11
#4  (0.3,0.4]    9
#5  (0.4,0.5]   14
#6  (0.5,0.6]    7
#7  (0.6,0.7]   11
#8  (0.7,0.8]   11
#9  (0.8,0.9]   11
#10   (0.9,1]    7

See ?cut, ?table and ?as.data.frame.table for more information.

HTH,

Jorge



On Tue, Nov 18, 2008 at 12:50 AM, kayj <kjaja27@yahoo.com> wrote:
>
> Hi All,
>
> I have a column that contains values between 0 and 1.  I would like to make
> a table that consists of the number of elements in each category.
>
> For example , how many elements have values between 0 and 0.1, 0.1 to 0.2,
> 0.2 to 0.3,etc……..0.9 to 1.
>
> Is there an easy way to do this?
>
> Thanks
>
> --
> View this message in context:
>
http://www.nabble.com/counting-the-number-of-elements-in-a-column-tp20553994p20553994.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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