[R] Problem building/checking library that requires input fro m user

Warnes, Gregory R gregory.r.warnes at pfizer.com
Mon Oct 3 17:48:28 CEST 2005


What file are you putting these into?  

I believe this is the correct syntax for the \example{} section of an .Rd
file.

If you want to do this in a plain R file, (e.g. package/tests/somename.R),
you can use 

if(interactive)
{
 num_reps <- readline(""How many reps do you have... ")
 num_reps <- as.integer(num_reps)
}
else
 num_reps <- 10

instead.

-G


> -----Original Message-----
> From: Ken Termiso [mailto:jerk_alert at hotmail.com]
> Sent: Monday, October 03, 2005 11:42 AM
> To: Warnes, Gregory R; ripley at stats.ox.ac.uk
> Cc: r-help at stat.math.ethz.ch
> Subject: RE: [R] Problem building/checking library that requires input
> from user
> 
> 
> Thanks, Dr Warnes & Prof Ripley...
> 
> However, upon following the instructions below, I'm getting 
> syntax errors on 
> the line that has \dontshow...below is my code...I get the 
> same error if i 
> omit the first block and just try \dontrun...
> 
> \dontshow{
> num_reps <- 10
> }
> 
> \dontrun{
> num_reps <- readline(""How many reps do you have... ")
> num_reps <- as.integer(num_reps)
> }
> 
> 
> could this have anything to do with it running on OS X 10.3 ?? (long 
> shot...but i'm thoroughly lost)..
> 
> thanks again,
> ken
> 
> 
> >From: "Warnes, Gregory R" <gregory.r.warnes at pfizer.com>
> >To: "'Ken Termiso'" <jerk_alert at hotmail.com>
> >Subject: RE: [R] Problem building/checking library that 
> requires input from 
> >user
> >Date: Mon, 3 Oct 2005 10:11:15 -0400
> >
> >
> >Try changing the example code to:
> >
> >\dontshow{
> >   num_reps <- 10
> >}
> >\dontrun{
> >   num_reps <- readline("How many reps do you have... ")
> >   num_reps <- as.integer(num_reps)
> >}
> >
> >-Greg
> >
> >
> > > -----Original Message-----
> > > From: r-help-bounces at stat.math.ethz.ch
> > > [mailto:r-help-bounces at stat.math.ethz.ch]On Behalf Of Ken Termiso
> > > Sent: Monday, October 03, 2005 9:41 AM
> > > To: r-help at stat.math.ethz.ch
> > > Subject: [R] Problem building/checking library that requires
> > > input from
> > > user
> > >
> > >
> > > Hi all,
> > >
> > > I've got a package i've written that i am trying to 
> check, build, and
> > > install. This is my 1st time doing this, so apologies in 
> advance... ;)
> > >
> > > The package that I've written requires input from the user.
> > > It needs to know
> > > sample sizes and then runs some calcs, (sample sizes are just
> > > integers), and
> > > it gets this info from the user as
> > >
> > > num_reps <- readline("How many reps do you have... ")
> > >
> > > num_reps <- as.integer(num_reps)
> > >
> > > and then loops
> > >
> > > for(i in 1:num_reps)
> > > {
> > >       #code
> > > }
> > >
> > >
> > > HOWEVER, I get this error msg when trying to check/build/install:
> > >
> > > Error in 1:num_con_biol_reps : NA/NaN argument
> > >
> > > Presumably this is because R thinks the variable is never
> > > initialized before
> > > i try to use it as a loop limit...
> > >
> > > Anyway around this?? I tried initializing the num_reps
> > > variable in the code
> > > before the readline, but get the same error...
> > >
> > >
> > > Thanks very much in advance,
> > > Ken
> > >
> > > ______________________________________________
> > > R-help at stat.math.ethz.ch mailing list
> > > https://stat.ethz.ch/mailman/listinfo/r-help
> > > PLEASE do read the posting guide!
> > > http://www.R-project.org/posting-guide.html
> > >
> > >
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