How about this?
name.length = 10
name = paste(sample(letters,name.length,T),collapse="")
Then you can use file.exists(), to check if the file already exists.
On Mon, Aug 11, 2008 at 12:28 PM, sara martino <[EMAIL PROTECTED]> wrote:
> Hei,
> is it possible to create from R a series of files w
My apologies, the previous replies did not show up for me.
On Sat, Apr 26, 2008 at 1:49 PM, Jared O'Connell
<[EMAIL PROTECTED]> wrote:
> Very näively, you could do something like this,
>
> plot(density(A))
> lines(density(B),col=2)
>
> , and tinker your xlim and
Very näively, you could do something like this,
plot(density(A))
lines(density(B),col=2)
, and tinker your xlim and ylim as suitable. The Cairo library gives
a pretty example,
data(iris)
attach(iris)
plot(Petal.Length, rep(-0.03,length(Species)), xlim=c(1,7),
ylim=c(0,1.7), xlab="Peta
See the examples under
?png
?pdf
On Jan 24, 2008 10:05 AM, elyakhlifi mustapha <[EMAIL PROTECTED]>
wrote:
> hello,
> happy new year.
> I want to know if it's possible to send a bar chart from the software R to
> an directory.
> Thanks.
>
>
>
> _
I'm assuming the package installed correctly (I've only ever installed
packages from within R)
Have you loaded the zoo package before calling rollmean?
ie.
> library(zoo)
On Jan 7, 2008 4:31 PM, Abu Naser <[EMAIL PROTECTED]> wrote:
>
>
> Hi Jerad,
>
> Thanks for your quick response. I h
See ?rollmean in the zoo package.
On Jan 7, 2008 3:31 PM, Abu Naser <[EMAIL PROTECTED]> wrote:
>
> Hi all R users,
>
> Can anyone please let me know how to do the moving average with R?
>
>
>
> With regards,
> Abu
>
>
>
>
>
>
>
> _
>
You could use sample eg.
> sample(1:10,5,replace=T)
[1] 1 5 4 6 3
but there may be a more approriate function.
On Dec 7, 2007 8:59 AM, kexinz <[EMAIL PROTECTED]> wrote:
>
> I'm a beginner of R.
> I can use runif() to generate uniformly distributed numbers, but I don't
> know which function
This page may be helpful :)
http://www.r-project.org/doc/bib/R-books.html
Modern Applied Statistics with S is quite broad and very good.
On Nov 28, 2007 4:38 PM, Max <[EMAIL PROTECTED]> wrote:
> Hi everyone!
>
> I've recently begun to learn R for my job as the IT department suffers
> from lack
?is.na
On Nov 21, 2007 12:15 PM, Eleni Christodoulou <[EMAIL PROTECTED]> wrote:
> Hi all!
>
> I am new to R and I would like to ask you the following question:How
> can I substitute the NA values with 0 in a data frame? I cannot find a
> command to check if a value is NA...
>
> Thank you very muc
?any
For example,
> X <- matrix(1:9,nrow=3)
> X
[,1] [,2] [,3]
[1,]147
[2,]258
[3,]369
> any(X==5)
[1] TRUE
> any(X==10)
[1] FALSE
On 10/1/07, Svempa <[EMAIL PROTECTED]> wrote:
>
>
> Thank you, though one small problem remains. How do I define the criter
blem now since HDDs are cheap and function
> bodies are generally small.
>
> But, when you change any function body, you have to repeat that source()
> call in local workspace of every project using the functions.
>
>
> Jared O'Connell wrote:
> >
> > Having
Having your functions in a text file, say "functions.r" and then calling:
>source("functions.r")
is also an option. This assumes you are in the same directory as "
functions.r". Perhaps take a look at ?setwd and ?getwd as well.
On 9/25/07, Vladimir Eremeev <[EMAIL PROTECTED]> wrote:
>
>
>
>
Take a look at the "chron" package...
> as.chron("2004-8-1",format=c(dates="y-m-d")) -
> as.chron("1960-1-1",format=c(dates="y-m-d"))
Time in days:
[1] 16284
On 9/13/07, zhijie zhang <[EMAIL PROTECTED]> wrote:
>
> Dear Rusers,
> I have some data in .csv file like "2004-8-1" and "2004-10-1",
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