[R] Help

Sat Jun 30 16:04:25 CEST 2012

   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.  Perhaps some other library that
   you have loaded is masking something in ggplot2 or reshape2.  Can any more
   savvy R users comment here?
   Here is a link to the output  which I think sounds like what you want.

   [2]http://www.mediafire.com/i/?sgc2evfen5vvckb
   It  only  has two columns of data since I'm too lazy to do more but in
   principle it does any number as along at the output device can show it.
   Here  is  my sessionInfo() in case we have some serious differences in
   settings.
   sessionInfo()
   R version 2.15.1 (2012-06-22)
   Platform: i686-pc-linux-gnu (32-bit)
   locale:
    [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
    [3] LC_TIME=en_CA.UTF-8        LC_COLLATE=en_US.UTF-8
    [5] LC_MONETARY=en_CA.UTF-8    LC_MESSAGES=en_US.UTF-8
    [7] LC_PAPER=C                 LC_NAME=C
    [9] LC_ADDRESS=C               LC_TELEPHONE=C
   [11] LC_MEASUREMENT=en_CA.UTF-8 LC_IDENTIFICATION=C
   attached base packages:
   [1] stats     graphics  grDevices utils     datasets  methods   base
   other attached packages:
   [1] reshape2_1.2.1 ggplot2_0.9.1
   loaded via a namespace (and not attached):
    [1]      colorspace_1.1-1        dichromat_1.2-4         digest_0.5.2
   grid_2.15.1
    [5]       labeling_0.1            MASS_7.3-18             memoise_0.1
   munsell_0.3
    [9]    plyr_1.7.1            proto_0.3-9.2         RColorBrewer_1.0-5
   scales_0.2.1
   [13] stringr_0.6

   John Kane
   Kingston ON Canada

   -----Original Message-----
   From: hannah.hlx at gmail.com
   Sent: Fri, 29 Jun 2012 21:31:55 -0400
   To: jrkrideau at inbox.com
   Subject: Re: [R] Help

   Hi Petr, David and John,
     Thanks for the reply. I am sorry that I did not make it very clear.
   "One on top of another" may not be the right expression.
   Actually what I wanted is the second option of David's. There
   are 10 columns in the plot and, in each column, there are three boxplots.
   Different colors can be used to distinguish the three boxplots in the
   same column.
       John, when I run the code, I got the message below:
   Error in [3]rq.fit.br(x, y, tau = tau, ...) : Singular design matrix
   In addition: Warning message:
   In [4]is.na(rows) : [5]is.na() applied to non-(list or vector) of type
   'NULL'
   Thanks again, everyone.
         Hannah
   2012/6/29 John Kane <[6]jrkrideau at inbox.com>

     I think I may understand what you want.
     I 'd say the first thing to do is to combine the 3 matrices into a single
     data frame with a column for the values of A, B C
     Here is a mock-up with something like what I mean. I just used two columns
     of data for the mock-up.
     Then, you can reshape the data using melt() from the reshape2 package and
     then graph the data using ggplot from the ggplot2 package.
     Is this something like what you want?
     =============================================================
     library(ggplot2)
     library(reshape2)
     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)
     p  <-  ggplot( mdata , aes(variable, value , colour = variable )) +
     geom_boxplot() +
               facet_grid( group ~ .)
     p
     ==============================================================
     John Kane
     Kingston ON Canada

   > -----Original Message-----
   > From: [7]hannah.hlx at gmail.com
   > Sent: Thu, 28 Jun 2012 16:29:54 -0400
   > To: [8]r-help at r-project.org
   > Subject: [R] Help
   >
   > Dear all,
   >   I need some help on plotting multiple boxplots on one figure.
   >   I have three matrix A, B and C. Each of them is a 1000 by 10 matrix.
   > The 10 columns of all three matrix correspond to the
   > 10 values of the same parameter, say k=1, ..., 10.
   >   I want to make a plot where x axis represents different values of k.
   > For each k value, I want to plot three boxplots, one on top of another.
   > For example, for k=1, I want to draw three boxplot based on the first
   > column of A, B and C respectively. Similarly, I do the same for the rest
   > of
   > k values.
   >   Can some one give me some hint on this?
   >   Thank you so much.
   >         Hannah
   >

   >       [[alternative HTML version deleted]]
   >
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References

   1. http://rq.fit.br/
   2. http://www.mediafire.com/i/?sgc2evfen5vvckb
   3. http://rq.fit.br/
   4. http://is.na/
   5. http://is.na/
   6. mailto:jrkrideau at inbox.com
   7. mailto:hannah.hlx at gmail.com
   8. mailto:r-help at r-project.org
   9. mailto:R-help at r-project.org
  10. https://stat.ethz.ch/mailman/listinfo/r-help
  11. http://www.R-project.org/posting-guide.html
  12. http://www.inbox.com/photosharing
  13. http://www.inbox.com/email