Hi John,
It worked. Thanks a lot!
Hannah
2012/6/30 John Kane <jrkrid...@inbox.com>
> It looks like we have different versions of software loaded.
> I have R version 2.15.0 (2012-03-30)
>
> My packages.
> reshape2_1.2.1 ggplot2_0.9.0
>
> Hannah's packages.
> R version 2.12.2 (2011-02-25)
> quantreg_4.71 SparseM_0.89 reshape2_1.1 ggplot2_0.8.9 proto_0.3-9.2
> [6] reshape_0.8.4 plyr_1.6
>
>
> It looks like quantreg is causing a problem since Peter says that the
> function is in the quantreg *package*.
>
> The first step would probably be to make sure that quantreg is not loaded
> and try the code again. It "probably" would work with an older version of
> ggplot2 and the old version of reshape. The command :
> unattach(package::quantreg) should work.
>
> Retry the code and see what happens.
>
> However I I think that you need to upgrade your version of R, and both
> ggplot2 and reshape2. . If I remember correctly your version of ggplot2
> is loading reshape and plyr automatically as you mention below. The newer
> version does not and one need to explicitly load reshape2.and plyr. So it
> is possible that reshape_0;8.4 is masking reshape2_1.2.1 which can cause
> problems.
>
> I'd suggest upgrading R, , make sure that quantreg is not being loaded
> automatically, or if it is unattach it( see above|), and then upgrade both
> reshape2 and ggplot to to the most recent versions and see what happens
> running the code from my first post.
>
>
> Best of luck.
>
> John Kane
> Kingston ON Canada
>
>
> > -----Original Message-----
> > From: hannah....@gmail.com
> > Sent: Sat, 30 Jun 2012 14:59:19 -0400
> > To: ehl...@ucalgary.ca
> > Subject: Re: [R] Help
> >
> > The following is what I get when I run the code.
> >
> >
> >> library(ggplot2)
> > Loading required package: reshape
> > Loading required package: plyr
> >
> > Attaching package: 'reshape'
> >
> > The following object(s) are masked from 'package:plyr':
> >
> > rename, round_any
> >
> > Loading required package: grid
> > Loading required package: proto
> >> library(reshape2)
> >
> > Attaching package: 'reshape2'
> >
> > The following object(s) are masked from 'package:reshape':
> >
> > colsplit, melt, recast
> >
> >>
> >> A <- data.frame( m = (rep("A", 10)) , b=rnorm(10), c = rnorm(10))
> >> B <- data.frame( m = (rep("B", 10)) , b=rnorm(10), c = rnorm(10))
> >> C <- data.frame( m = (rep("C", 10)) , b=rnorm(10), c = rnorm(10))
> >>
> >> mydata <- rbind( A, B, C )
> >> names(mydata) <- c( "group", "k1", "k2" )
> >> mdata <- melt(mydata)
> > Using group as id variables
> >>
> >> p <- ggplot( mdata , aes(variable, value , colour = variable )) +
> > geom_boxplot() +
> > + facet_grid( group ~ .)
> >> p
> > Error in rq.fit.br(x, y, tau = tau, ...) : Singular design matrix
> > In addition: Warning message:
> > In is.na(rows) : is.na() applied to non-(list or vector) of type 'NULL'
> >>
> >
> >
> > And my session info is as below:
> >
> >
> >> sessionInfo()
> > R version 2.12.2 (2011-02-25)
> > Platform: i386-apple-darwin9.8.0/i386 (32-bit)
> >
> > locale:
> > [1] en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8
> >
> > attached base packages:
> > [1] grid stats graphics grDevices utils datasets methods
> > [8] base
> >
> > other attached packages:
> > [1] quantreg_4.71 SparseM_0.89 reshape2_1.1 ggplot2_0.8.9 proto_0.3-9.2
> > [6] reshape_0.8.4 plyr_1.6
> >
> > loaded via a namespace (and not attached):
> > [1] stringr_0.5
> >
> >
> > When I tried to load package ggplot, I was asked to also load some of the
> > other packages, for example "plyr". Thanks.
> > Hannah
> >
> > 2012/6/30 Peter Ehlers <ehl...@ucalgary.ca>
> >
> >> On 2012-06-30 07:04, John Kane wrote:
> >>
> >>>
> >>> Hi Hannah,
> >>> I have run both the original code and the code copied from the email
> >>> and
> >>> both seem to work just fine.
> >>> I don't know why you are getting that error message. Do you have
> >>> both
> >>> ggplot2 and reshape2 loaded? Still that should not give you the
> >>> error
> >>> message you are getting. In fact given the data I supplied, I just
> >>> don't
> >>> understand what it is trying to say.
> >>> I cannot even find a function [1]rq.fit.br.
> >>>
> >> [...]
> >>
> >> This function is in the quantreg *package*. So Hannah isn't
> >> telling us the whole story.
> >>
> >> Peter Ehlers
> >>
> >>
> >
> > [[alternative HTML version deleted]]
> >
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> > http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
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