as.numeric(by(RecallSmall[1:4,"value"],RecallSmall[1:4,"ID"],acf,na.action=na.pass,plot=FALSE)[[1]]$acf)
On Tue, May 10, 2022 at 8:29 PM Sorkin, John <jsor...@som.umaryland.edu>
wrote:
> I am using the by function to run the acf function. Each run of the by
> function returns more information than I want. All I want is the four
> values that acf returns, which using the data below would be
> 1.00 0.15 -0.50 -0.15
> How can I isolate these four values from the output returned by the by
> function.
>
> Sample code:
>
> RecallSmall <- data.frame(ID=c(1,1,1,1),value=c(6,5,3,4))
> cat("Here are the data\n")
> RecallSmall
> cat("All I want is autocorrerlations, e.g. 1.00 0.15 -0.50 -0.15 \n ")
> # attempting to subset does not work at all
>
> by(RecallSmall[1:4,"value"],RecallSmall[1:4,"ID"],acf,na.action=na.pass,plot=FALSE)$acf
> # this gives me more than I want, not just the numeric results.
>
> by(RecallSmall[1:4,"value"],RecallSmall[1:4,"ID"],acf,na.action=na.pass,plot=FALSE)
>
> # For your reference, this is what the acf function returns
> acf(RecallSmall[1:4,"value"],na.action=na.pass,plot=FALSE)
> # For your reference, this is what the acf function returns when the
> output is subset
> acf(RecallSmall[1:4,"value"],na.action=na.pass,plot=FALSE)Thank you, John
>
> Thank you,
> John
>
>
>
>
>
>
>
>
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
>
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.
