R help - Nov 2007 - looking for function like rollmean()

Hi,

i have some data, that has 1-5 % noise. 
I want to smooth this data without loosing rows.

rollmean() would be great, but it returns a vector of different size as the
initial vector.

-- 
kind regards,

Jonas Stein <news at jonasstein.de>

If you are referring to rollmean in the zoo package then na.pad = TRUE
will cause the output to be the same length as the input:
> library(zoo)
> rollmean(zoo(1:10), 3, na.pad = TRUE)
 1  2  3  4  5  6  7  8  9 10
NA  2  3  4  5  6  7  8  9 NA
> rollmean(zoo(matrix(1:10, 5)), 3, na.pad = TRUE)
1 NA NA
2  2  7
3  3  8
4  4  9
5 NA NA


On Nov 23, 2007 4:02 PM, Jonas Stein <news at jonasstein.de>
wrote:
> Hi,
>
> i have some data, that has 1-5 % noise.
> I want to smooth this data without loosing rows.
>
> rollmean() would be great, but it returns a vector of different size as the
> initial vector.
>
> --
> kind regards,
>
> Jonas Stein <news at jonasstein.de>
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

Jonas Stein wrote:
> Hi,
> 
> i have some data, that has 1-5 % noise. 
> I want to smooth this data without loosing rows.
> 
> rollmean() would be great, but it returns a vector of different size as the
> initial vector.
  You might consider one of the smoothers in smooth() from the stats
package.

?smooth

-- 
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