[R] arulesSequences Package

William Dunlap
2018-10-02T00:45:48Z

Warning message:t
In file(con, "r") :
  cannot open file
'C:\Users\reichmanj\Documents\R\R-3.5.1\library\arulesSequences\misc\cspade1

f8c30bb5148.out': No such file or directory

It is hard to say what you did wrong when we only see R's output and not
what you typed to provoke the error.  However, this file it is trying to
read looks like something that tempfile() would have made if the tempdir()
function were messed up or if you gave an inappropriate directory name as
the tmpdir argument to arulesSequences::cspade.  You should not generally
give the tmpdir argument to cspade, as the default, tempdir(), should
work.  Did you supply it?  What does tempdir() return in the case that this
fails?

As an added complications, cspade redefines the system2 function if
.Platfom$OS.type is
"windows" and .Platform$GUI is "RGui".
    ## workaround
    if (.Platform$OS  == "windows" &&
        .Platform$GUI == "Rgui")
        system2 <- function(command, args = character(), stdout =
"", ...) {
            if (is.character(stdout) && nzchar(stdout)) {
                args   <- c(args, ">", stdout)
                stdout <- NULL
            }
            args <- c("/c", shQuote(command), args)
            command <- Sys.getenv("COMSPEC")
            ## bail out
            if (!nzchar(command))
                stop("environment variable 'COMSPEC' not set")
            base::system2(command, args = args, stdout = stdout, ...)
        }

RStudio redefines .Platform$RGui to be "RStudio" so this redefinition
does
not happen.  The author or maintainer of the package might be able to
straighten this part out.


Bill Dunlap
TIBCO Software
wdunlap tibco.com

On Mon, Oct 1, 2018 at 5:02 PM, Jeff Reichman <reichmanj at sbcglobal.net>
wrote:

> I Was able to figure out how to create my object using the
"read_baskets"
> function but when I run the "cspade" function I receive the
following error
> (running in RStudio)
> ...
> 4 -> 1 2 -> 1 -> 1 -- 1 1
> 3 -> 1 2 -> 1 -> 1 -- 1 1
> 3 4 -> 1 2 -> 1 -> 1 -- 1 1
> 3 4 -> 1 -> 1 -> 1 -- 1 1
>  NA MB [2.4s]
> reading sequences ...Error in file(con, "r") : cannot open the
connection
> In addition: Warning message:
> In file(con, "r") :
>   cannot open file
> 'C:\Users\reichmanj\Documents\R\R-3.5.1\library\
> arulesSequences\misc\cspade1
> f8c30bb5148.out': No such file or directory
> >
> > cspade> as(s1, "data.frame")
> Error in .class1(object) : object 's1' not found
>
> But if I run in R (alone) it works just fine.  Any idea why I can' t
seem
> to
> run in RStudio or what I might have to do in RStudio?
>
> -----Original Message-----
> From: R-help <r-help-bounces at r-project.org> On Behalf Of Jeff
Reichman
> Sent: Monday, October 1, 2018 4:48 PM
> To: r-help at r-project.org
> Subject: [R] arulesSequences Package
>
> R-Help Forum
>
> For anyone who has used the "arulesSequences" Package how do I
start with
> raw data (*.csv file) and convert into a sequence object to run the cSPADE
> function.  The package example use zaki dataset which has already been
> converted.  When I state raw data how should I structure my csv file?
>
> A web example  or RPubs link?
>
> For example
> Seq_1   {E,B}, {C}, {T}
> Seq_2   (E,M}, {C}, {B,E,V,T}
> Seq_3   {E},{C},{T}
>
> Jeff Reichman
>
> ______________________________________________
> R-help at 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.
>
> ______________________________________________
> R-help at 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.
>

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