O yea sure. So for example:


grid <- read.table("table")

( i havent printed the output, as the table is 20,000 rows X 60 columns)

point_of_interest <- c("row1", "row2")

therefore all the other points in

plot(table)

are labelled green, but these two are labelled red.

But at the minute, because the plot is so dense, my two red nodes are
completely obscured by by 19,998 other green nodes.

Just wondering if there is a way of arranging what order nodes are plotted
on the graph, i.e. so my interesting points are plotted last therefore on
top of the other nodes, and visible to me?

Please let me know if i should supply the whole table, it is just a lot of
data I didn't want to irritate anyone putting up a lot of data.

Syb

On Wed, Mar 14, 2012 at 6:29 PM, R. Michael Weylandt <
michael.weylandt@gmail.com> wrote:

> What sort of plot are you using? I'm not really clear on what your
> data as a whole look like: if you use dput() you can create a
> representation and we can work from there.
>
> In addition to the resources Josh recommended, the following sites can
> direct you to all sorts of graphical goodies, all of which come with
> source code (though at the latter site, they are often a little
> complicated):
>
> http://had.co.nz/ggplot2/
> http://addictedtor.free.fr/graphiques/
>
> Michael
>
> On Wed, Mar 14, 2012 at 10:13 AM, sybil kennelly
> <sybilkennelly@gmail.com> wrote:
> > I appreciate the reading Thank you. May i ask one final question. If i
> have:
> >
> > matrix:
> >>         var1    var2     var3
> >> cell1    x       x         x
> >> cell2    x       x         x
> >> cell3    x       x         x
> >>
> >> cell4
> >>
> >> .
> >> .
> >> .
> >> .
> >> cell100
> >
> > and:
> >
> > vector1 <- c("cell1, "cell5",cell19", "cell50", "cell70")
> >
> > your_data$mycells <- factor(your_data$cells %in% vector1, c("Special",
> > "NotSpecial"))
> >
> > So my output will be something like:
> >
> > [25] Special    Special    Special    Special    Special    Special
> >  [31] Special    NotSpecial NotSpecial NotSpecial NotSpecial NotSpecial
> >  [37] NotSpecial NotSpecial NotSpecial NotSpecial
> >
> > is there a way to plot the data so that my "Special" cells are plotted on
> > top of my not special cells. The reason is my data may have 10000 not
> > special points,and i may have 5 special cells, I find I'm not able to see
> > where they are on my plot because they are being covered by my not
> special
> > cells :(
> >
> > I have been looking around for  "order of factors plotted" , 'order of
> > levels", "order of factor levels", is this on the right track or can it
> > even be done?
> >
> > Syb
> >
> >
> >
> >
> > On Wed, Mar 14, 2012 at 2:04 PM, sybil kennelly <sybilkennelly@gmail.com
> >wrote:
> >
> >> I appreciate the reading Thank you. May i ask one final question. If i
> >> have:
> >>
> >> matrix:
> >> >         var1    var2     var3
> >> > cell1    x       x         x
> >> > cell2    x       x         x
> >> > cell3    x       x         x
> >> >
> >> > cell4
> >> >
> >> > .
> >> > .
> >> > .
> >> > .
> >> > cell100
> >>
> >> and:
> >>
> >> vector1 <- c("cell1, "cell5",cell19", "cell50", "cell70")
> >>
> >> your_data$mycells <- factor(your_data$cells %in% vector1, c("Special",
> >> "NotSpecial"))
> >>
> >> So my output will be something like:
> >>
> >> [25] Special    Special    Special    Special    Special    Special
> >>   [31] Special    NotSpecial NotSpecial NotSpecial NotSpecial NotSpecial
> >>   [37] NotSpecial NotSpecial NotSpecial NotSpecial
> >>
> >> is there a way to plot the data so that my "Special" cells are plotted
> on
> >> top of my not special cells. The reason is my data may have 10000 not
> >> special points,and i may have 5 special cells, I find I'm not able to
> see
> >> where they are on my plot because they are being covered by my not
> special
> >> cells :(
> >>
> >> I have been looking around for  "order of factors plotted" , 'order of
> >> levels", "order of factor levels", is this on the right track or can it
> >> even be done?
> >>
> >> Syb
> >>
> >> On Tue, Mar 13, 2012 at 12:29 PM, Joshua Wiley <jwiley.psych@gmail.com
> >wrote:
> >>
> >>> On Tue, Mar 13, 2012 at 5:15 AM, sybil kennelly <
> sybilkennelly@gmail.com>
> >>> wrote:
> >>> > Thanks Josh. I'm quite new, just wondering re:factor levels?
> >>> >
> >>> > In this example (shamelessly stolen from the internet):
> >>> >
> >>> > schtyp
> >>> >
> >>> > [1] 0 0 1 0 0 0 1 0 1 0 1 1 1 1 0 0 1 1 1 0
> >>> >
> >>> > schtyp.f <- factor(schtyp, labels = c("private", "public"))
> >>> >
> >>> > schtyp.f
> >>> >
> >>> > [1] private private public private private private public private
> public
> >>> > [10] private public public public public private private public
> public
> >>> >
> >>> > [19] public private
> >>> >
> >>> >
> >>> > Levels: private public
> >>> >
> >>> >
> >>> >
> >>> > in my data i have a table:
> >>> >
> >>> >         var1    var2     var3
> >>> > cell1    x       x         x
> >>> > cell2    x       x         x
> >>> > cell3    x       x         x
> >>> >
> >>> > cell4
> >>> >
> >>> > .
> >>> > .
> >>> > .
> >>> > .
> >>> > cell100
> >>> >
> >>> >
> >>> > and i have a subset of those cells that are interesting to me as a
> list
> >>> of
> >>> > data
> >>> > list1 = ["cell1, "cell5",cell19", "cell50", "cell70"]
> >>> >
> >>> > is it possible to create (similar to above):
> >>> >
> >>> > schtyp.f <- factor(schtyp, labels = c("special", "normal"))
> >>>
> >>> Sure.  Again, probably better to have cells of interest in a vector,
> >>> not a list a la:
> >>>
> >>> list1 <- c("cell1, "cell5",cell19", "cell50", "cell70")
> >>>
> >>> your_data$mycells <- factor(your_data$cells %in% list1, c("Special",
> >>> "NotSpecial"))
> >>>
> >>> basically compares the cells to those in your list and returns
> >>> TRUE/FALSE, which is then converted to a factor, labeled, and stored.
> >>> If you are just starting, some background reading will help.  Here are
> >>> some suggestions:
> >>>
> >>> 1) Go here: http://www.burns-stat.com/pages/tutorials.html and read
> >>> the tutorials for R -- Beginning (this should not take more than 1
> >>> day).
> >>> 2) Sit down and read:
> >>> http://cran.r-project.org/doc/manuals/R-intro.pdf through Appendix A
> >>> (for now you can probably skip the rest of the appendices).  That will
> >>> probably take another entire day or so.
> >>> 3) Head back to Patrick Burn's website:
> >>> http://www.burns-stat.com/pages/tutorials.html and read the
> >>> intermediate guide, The R Inferno (1-3 days depending if you can read
> >>> for 8 hours straight or not)
> >>>
> >>> Cheers,
> >>>
> >>> Josh
> >>>
> >>> >
> >>> > so that when i plot this data, i can color the items in list1 as one
> >>> color
> >>> > (eg all the special cells are red), and the rest of the items as a
> >>> second
> >>> > color (eg all the other cells are black/blue)?
> >>> >
> >>> >
> >>> > Syb
> >>> >
> >>> >
> >>> >
> >>> > On Tue, Mar 13, 2012 at 11:48 AM, Joshua Wiley <
> jwiley.psych@gmail.com>
> >>> > wrote:
> >>> >>
> >>> >> Hi Sybil,
> >>> >>
> >>> >> You cannot turn a list into a factor.  You could do:
> >>> >>
> >>> >> cell_data <-c('cell1','cell2')
> >>> >> factor_list <- factor(cell_data)
> >>> >>
> >>> >> or if you already have a list, unlist() or as.vector() may convert
> it
> >>> >> into a vector that you can then convert to a factor.
> >>> >>
> >>> >> Cheers,
> >>> >>
> >>> >> Josh
> >>> >>
> >>> >> On Tue, Mar 13, 2012 at 4:29 AM, sybil kennelly <
> >>> sybilkennelly@gmail.com>
> >>> >> wrote:
> >>> >> > Hello can anyone help please?
> >>> >> >
> >>> >> > i read two words "cell1", "cell2" into a list. I want to turn this
> >>> list
> >>> >> > into a factor.
> >>> >> >
> >>> >> >> cell_data <-list(c('cell1','cell2'))
> >>> >> >
> >>> >> >
> >>> >> >> cell_data
> >>> >> > [[1]]
> >>> >> > [1] "cell1" "cell2"
> >>> >> >
> >>> >> >
> >>> >> >
> >>> >> >> factor_list <- factor(cell_data)
> >>> >> > Error in sort.list(y) : 'x' must be atomic for 'sort.list'
> >>> >> > Have you called 'sort' on a list?
> >>> >> >
> >>> >> >
> >>> >> >
> >>> >> >> sort.list(cell_data)
> >>> >> > Error in sort.list(cell_data) : 'x' must be atomic for 'sort.list'
> >>> >> > Have you called 'sort' on a list?
> >>> >> >
> >>> >> >
> >>> >> > Can anyone explain?
> >>> >> >
> >>> >> > Syb
> >>> >> >
> >>> >> >        [[alternative HTML version deleted]]
> >>> >> >
> >>> >> > ______________________________________________
> >>> >> > R-help@r-project.org mailing list
> >>> >> > 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.
> >>> >>
> >>> >>
> >>> >>
> >>> >> --
> >>> >> Joshua Wiley
> >>> >> Ph.D. Student, Health Psychology
> >>> >> Programmer Analyst II, Statistical Consulting Group
> >>> >> University of California, Los Angeles
> >>> >> https://joshuawiley.com/
> >>> >
> >>> >
> >>>
> >>>
> >>>
> >>> --
> >>> Joshua Wiley
> >>> Ph.D. Student, Health Psychology
> >>> Programmer Analyst II, Statistical Consulting Group
> >>> University of California, Los Angeles
> >>> https://joshuawiley.com/
> >>>
> >>
> >>
> >
> >        [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > 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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