Matthew Snyder
2019-Apr-09 20:49 UTC
[R] Define pch and color based on two different columns
I am making a lattice plot and I would like to use the value in one column
to define the pch and another column to define color of points. Something
like:
xyplot(mpg ~ wt | cyl,
data=mtcars,
col = gear,
pch = carb
)
There are unique pch points in the second and third panels, but these
points are only unique within the plots, not among all the plots (as they
should be). You can see this if you use the following code:
xyplot(mpg ~ wt | cyl,
data=mtcars,
groups = carb
)
This plot looks great for one group, but if you try to invoke two groups
using c(gear, carb) I think it simply takes unique combinations of those
two variables and plots them as unique colors.
Another solution given by a StackExchange user:
mypch <- 1:6
mycol <- 1:3
xyplot(mpg ~ wt | cyl,
panel = function(x, y, ..., groups, subscripts) {
pch <- mypch[factor(carb[subscripts])]
col <- mycol[factor(gear[subscripts])]
grp <- c(gear,carb)
panel.xyplot(x, y, pch = pch, col = col)
}
)
This solution has the same problems as the code at the top. I think the
issue causing problems with both solutions is that not every value for each
group is present in each panel, and they are almost never in the same
order. I think R is just interpreting the appearance of unique values as a
signal to change to the next pch or color. My actual data file is very
large, and it's not possible to sort my way out of this mess. It would be
best if I could just use the value in two columns to actually define a
color or pch for each point on an entire plot. Is there a way to do this?
Ps, I had to post this via email because the Nabble site kept sending me an
error message: "Message rejected by filter rule match"
Thanks,
Matt
*Matthew R. Snyder*
*~~~~~~~~~~~~~~~~~*
PhD Candidate
University Fellow
University of Toledo
Computational biologist, ecologist, and bioinformatician
Sponsored Guest Researcher at NOAA PMEL, Seattle, WA.
Matthew.Snyder6 at rockets.utoledo.edu
MSnyder424 at gmail.com
[image: Mailtrack]
<https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&>
Sender
notified by
Mailtrack
<https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&>
04/09/19,
1:49:27 PM
[[alternative HTML version deleted]]
Hi Matthew,
How about this?
library(lattice)
xyplot(mpg ~ wt | cyl,
data=mtcars,
col = mtcars$gear,
pch = mtcars$carb
)
library(plotrix)
grange<-range(mtcars$gear)
xyplot(mpg ~ wt | cyl,
data=mtcars,
col =
color.scale(mtcars$gear,extremes=c("blue","red"),xrange=grange),
pch = as.character(mtcars$carb)
)
Jim
On Wed, Apr 10, 2019 at 7:43 AM Matthew Snyder <msnyder424 at gmail.com>
wrote:>
> I am making a lattice plot and I would like to use the value in one column
> to define the pch and another column to define color of points. Something
> like:
>
> xyplot(mpg ~ wt | cyl,
> data=mtcars,
> col = gear,
> pch = carb
> )
>
> There are unique pch points in the second and third panels, but these
> points are only unique within the plots, not among all the plots (as they
> should be). You can see this if you use the following code:
>
> xyplot(mpg ~ wt | cyl,
> data=mtcars,
> groups = carb
> )
>
> This plot looks great for one group, but if you try to invoke two groups
> using c(gear, carb) I think it simply takes unique combinations of those
> two variables and plots them as unique colors.
>
> Another solution given by a StackExchange user:
>
> mypch <- 1:6
> mycol <- 1:3
>
> xyplot(mpg ~ wt | cyl,
> panel = function(x, y, ..., groups, subscripts) {
> pch <- mypch[factor(carb[subscripts])]
> col <- mycol[factor(gear[subscripts])]
> grp <- c(gear,carb)
> panel.xyplot(x, y, pch = pch, col = col)
> }
> )
>
> This solution has the same problems as the code at the top. I think the
> issue causing problems with both solutions is that not every value for each
> group is present in each panel, and they are almost never in the same
> order. I think R is just interpreting the appearance of unique values as a
> signal to change to the next pch or color. My actual data file is very
> large, and it's not possible to sort my way out of this mess. It would
be
> best if I could just use the value in two columns to actually define a
> color or pch for each point on an entire plot. Is there a way to do this?
>
> Ps, I had to post this via email because the Nabble site kept sending me an
> error message: "Message rejected by filter rule match"
>
> Thanks,
> Matt
>
>
>
> *Matthew R. Snyder*
> *~~~~~~~~~~~~~~~~~*
> PhD Candidate
> University Fellow
> University of Toledo
> Computational biologist, ecologist, and bioinformatician
> Sponsored Guest Researcher at NOAA PMEL, Seattle, WA.
> Matthew.Snyder6 at rockets.utoledo.edu
> MSnyder424 at gmail.com
>
>
>
> [image: Mailtrack]
>
<https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&>
> Sender
> notified by
> Mailtrack
>
<https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&>
> 04/09/19,
> 1:49:27 PM
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> 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.
Matthew Snyder
2019-Apr-10 03:09 UTC
[R] Define pch and color based on two different columns
Thanks, Jim. I appreciate your contributed answer, but neither of those make the desired plot either. I'm actually kind of shocked this isn't an easier more straightforward thing. It seems like this would be something that a user would want to do frequently. I can actually do this for single plots in ggplot. Maybe I should contact the authors of lattice and see if this is something they can help me with or if they would like to add this as a feature in the future... Matt *Matthew R. Snyder* *~~~~~~~~~~~~~~~~~* PhD Candidate University Fellow University of Toledo Computational biologist, ecologist, and bioinformatician Sponsored Guest Researcher at NOAA PMEL, Seattle, WA. Matthew.Snyder6 at rockets.utoledo.edu MSnyder424 at gmail.com [image: Mailtrack] <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&> Sender notified by Mailtrack <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&> 04/09/19, 7:52:27 PM On Tue, Apr 9, 2019 at 4:53 PM Jim Lemon <drjimlemon at gmail.com> wrote:> Hi Matthew, > How about this? > > library(lattice) > xyplot(mpg ~ wt | cyl, > data=mtcars, > col = mtcars$gear, > pch = mtcars$carb > ) > library(plotrix) > grange<-range(mtcars$gear) > xyplot(mpg ~ wt | cyl, > data=mtcars, > col > color.scale(mtcars$gear,extremes=c("blue","red"),xrange=grange), > pch = as.character(mtcars$carb) > ) > > Jim > > On Wed, Apr 10, 2019 at 7:43 AM Matthew Snyder <msnyder424 at gmail.com> > wrote: > > > > I am making a lattice plot and I would like to use the value in one > column > > to define the pch and another column to define color of points. Something > > like: > > > > xyplot(mpg ~ wt | cyl, > > data=mtcars, > > col = gear, > > pch = carb > > ) > > > > There are unique pch points in the second and third panels, but these > > points are only unique within the plots, not among all the plots (as they > > should be). You can see this if you use the following code: > > > > xyplot(mpg ~ wt | cyl, > > data=mtcars, > > groups = carb > > ) > > > > This plot looks great for one group, but if you try to invoke two groups > > using c(gear, carb) I think it simply takes unique combinations of those > > two variables and plots them as unique colors. > > > > Another solution given by a StackExchange user: > > > > mypch <- 1:6 > > mycol <- 1:3 > > > > xyplot(mpg ~ wt | cyl, > > panel = function(x, y, ..., groups, subscripts) { > > pch <- mypch[factor(carb[subscripts])] > > col <- mycol[factor(gear[subscripts])] > > grp <- c(gear,carb) > > panel.xyplot(x, y, pch = pch, col = col) > > } > > ) > > > > This solution has the same problems as the code at the top. I think the > > issue causing problems with both solutions is that not every value for > each > > group is present in each panel, and they are almost never in the same > > order. I think R is just interpreting the appearance of unique values as > a > > signal to change to the next pch or color. My actual data file is very > > large, and it's not possible to sort my way out of this mess. It would be > > best if I could just use the value in two columns to actually define a > > color or pch for each point on an entire plot. Is there a way to do this? > > > > Ps, I had to post this via email because the Nabble site kept sending me > an > > error message: "Message rejected by filter rule match" > > > > Thanks, > > Matt > > > > > > > > *Matthew R. Snyder* > > *~~~~~~~~~~~~~~~~~* > > PhD Candidate > > University Fellow > > University of Toledo > > Computational biologist, ecologist, and bioinformatician > > Sponsored Guest Researcher at NOAA PMEL, Seattle, WA. > > Matthew.Snyder6 at rockets.utoledo.edu > > MSnyder424 at gmail.com > > > > > > > > [image: Mailtrack] > > < > https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5& > > > > Sender > > notified by > > Mailtrack > > < > https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5& > > > > 04/09/19, > > 1:49:27 PM > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > 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. >[[alternative HTML version deleted]]
Peter Langfelder
2019-Apr-10 04:36 UTC
[R] Define pch and color based on two different columns
Sorry for being late to the party, but has anyone suggested a minor
but important modification of the code from stack exchange?
xyplot(mpg ~ wt | cyl,
panel = function(x, y, ..., groups, subscripts) {
pch <- mypch[factor(carb)[subscripts]]
col <- mycol[factor(gear)[subscripts]]
grp <- c(gear,carb)
panel.xyplot(x, y, pch = pch, col = col)
}
)
>From the little I understand about what you're trying to do, this may
just do the trick.
Peter
On Tue, Apr 9, 2019 at 2:43 PM Matthew Snyder <msnyder424 at gmail.com>
wrote:>
> I am making a lattice plot and I would like to use the value in one column
> to define the pch and another column to define color of points. Something
> like:
>
> xyplot(mpg ~ wt | cyl,
> data=mtcars,
> col = gear,
> pch = carb
> )
>
> There are unique pch points in the second and third panels, but these
> points are only unique within the plots, not among all the plots (as they
> should be). You can see this if you use the following code:
>
> xyplot(mpg ~ wt | cyl,
> data=mtcars,
> groups = carb
> )
>
> This plot looks great for one group, but if you try to invoke two groups
> using c(gear, carb) I think it simply takes unique combinations of those
> two variables and plots them as unique colors.
>
> Another solution given by a StackExchange user:
>
> mypch <- 1:6
> mycol <- 1:3
>
> xyplot(mpg ~ wt | cyl,
> panel = function(x, y, ..., groups, subscripts) {
> pch <- mypch[factor(carb[subscripts])]
> col <- mycol[factor(gear[subscripts])]
> grp <- c(gear,carb)
> panel.xyplot(x, y, pch = pch, col = col)
> }
> )
>
> This solution has the same problems as the code at the top. I think the
> issue causing problems with both solutions is that not every value for each
> group is present in each panel, and they are almost never in the same
> order. I think R is just interpreting the appearance of unique values as a
> signal to change to the next pch or color. My actual data file is very
> large, and it's not possible to sort my way out of this mess. It would
be
> best if I could just use the value in two columns to actually define a
> color or pch for each point on an entire plot. Is there a way to do this?
>
> Ps, I had to post this via email because the Nabble site kept sending me an
> error message: "Message rejected by filter rule match"
>
> Thanks,
> Matt
>
>
>
> *Matthew R. Snyder*
> *~~~~~~~~~~~~~~~~~*
> PhD Candidate
> University Fellow
> University of Toledo
> Computational biologist, ecologist, and bioinformatician
> Sponsored Guest Researcher at NOAA PMEL, Seattle, WA.
> Matthew.Snyder6 at rockets.utoledo.edu
> MSnyder424 at gmail.com
>
>
>
> [image: Mailtrack]
>
<https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&>
> Sender
> notified by
> Mailtrack
>
<https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&>
> 04/09/19,
> 1:49:27 PM
>
> [[alternative HTML version deleted]]
>
> ______________________________________________
> 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.
Matthew Snyder
2019-Apr-10 05:02 UTC
[R] Define pch and color based on two different columns
You are not late to the party. And you solved it! Thank you very much. You just made my PhD a little closer to reality! Matt *Matthew R. Snyder* *~~~~~~~~~~~~~~~~~* PhD Candidate University Fellow University of Toledo Computational biologist, ecologist, and bioinformatician Sponsored Guest Researcher at NOAA PMEL, Seattle, WA. Matthew.Snyder6 at rockets.utoledo.edu MSnyder424 at gmail.com [image: Mailtrack] <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&> Sender notified by Mailtrack <https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&> 04/09/19, 10:01:53 PM On Tue, Apr 9, 2019 at 9:37 PM Peter Langfelder <peter.langfelder at gmail.com> wrote:> Sorry for being late to the party, but has anyone suggested a minor > but important modification of the code from stack exchange? > > xyplot(mpg ~ wt | cyl, > panel = function(x, y, ..., groups, subscripts) { > pch <- mypch[factor(carb)[subscripts]] > col <- mycol[factor(gear)[subscripts]] > grp <- c(gear,carb) > panel.xyplot(x, y, pch = pch, col = col) > } > ) > > From the little I understand about what you're trying to do, this may > just do the trick. > > Peter > > On Tue, Apr 9, 2019 at 2:43 PM Matthew Snyder <msnyder424 at gmail.com> > wrote: > > > > I am making a lattice plot and I would like to use the value in one > column > > to define the pch and another column to define color of points. Something > > like: > > > > xyplot(mpg ~ wt | cyl, > > data=mtcars, > > col = gear, > > pch = carb > > ) > > > > There are unique pch points in the second and third panels, but these > > points are only unique within the plots, not among all the plots (as they > > should be). You can see this if you use the following code: > > > > xyplot(mpg ~ wt | cyl, > > data=mtcars, > > groups = carb > > ) > > > > This plot looks great for one group, but if you try to invoke two groups > > using c(gear, carb) I think it simply takes unique combinations of those > > two variables and plots them as unique colors. > > > > Another solution given by a StackExchange user: > > > > mypch <- 1:6 > > mycol <- 1:3 > > > > xyplot(mpg ~ wt | cyl, > > panel = function(x, y, ..., groups, subscripts) { > > pch <- mypch[factor(carb[subscripts])] > > col <- mycol[factor(gear[subscripts])] > > grp <- c(gear,carb) > > panel.xyplot(x, y, pch = pch, col = col) > > } > > ) > > > > This solution has the same problems as the code at the top. I think the > > issue causing problems with both solutions is that not every value for > each > > group is present in each panel, and they are almost never in the same > > order. I think R is just interpreting the appearance of unique values as > a > > signal to change to the next pch or color. My actual data file is very > > large, and it's not possible to sort my way out of this mess. It would be > > best if I could just use the value in two columns to actually define a > > color or pch for each point on an entire plot. Is there a way to do this? > > > > Ps, I had to post this via email because the Nabble site kept sending me > an > > error message: "Message rejected by filter rule match" > > > > Thanks, > > Matt > > > > > > > > *Matthew R. Snyder* > > *~~~~~~~~~~~~~~~~~* > > PhD Candidate > > University Fellow > > University of Toledo > > Computational biologist, ecologist, and bioinformatician > > Sponsored Guest Researcher at NOAA PMEL, Seattle, WA. > > Matthew.Snyder6 at rockets.utoledo.edu > > MSnyder424 at gmail.com > > > > > > > > [image: Mailtrack] > > < > https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5& > > > > Sender > > notified by > > Mailtrack > > < > https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5& > > > > 04/09/19, > > 1:49:27 PM > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > 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. >[[alternative HTML version deleted]]
Richard M. Heiberger
2019-Apr-10 05:03 UTC
[R] Define pch and color based on two different columns
conditions look better as factors (their values are displayed in the
strip label).
groups should be a factor to get the uniqueness over panels.
To use two factors together for groups, take their interaction.
col and pch should be integers
xyplot(mpg ~ wt | factor(cyl), data=mtcars,
groups = factor(carb),
col = mtcars$gear,
pch = mtcars$carb
)
xyplot(mpg ~ wt | factor(cyl), data=mtcars,
groups = interaction(factor(carb), factor(gear)),
col = mtcars$gear,
pch = mtcars$carb
)
On Wed, Apr 10, 2019 at 12:54 AM Peter Langfelder
<peter.langfelder at gmail.com> wrote:>
> Sorry for being late to the party, but has anyone suggested a minor
> but important modification of the code from stack exchange?
>
> xyplot(mpg ~ wt | cyl,
> panel = function(x, y, ..., groups, subscripts) {
> pch <- mypch[factor(carb)[subscripts]]
> col <- mycol[factor(gear)[subscripts]]
> grp <- c(gear,carb)
> panel.xyplot(x, y, pch = pch, col = col)
> }
> )
>
> From the little I understand about what you're trying to do, this may
> just do the trick.
>
> Peter
>
> On Tue, Apr 9, 2019 at 2:43 PM Matthew Snyder <msnyder424 at
gmail.com> wrote:
> >
> > I am making a lattice plot and I would like to use the value in one
column
> > to define the pch and another column to define color of points.
Something
> > like:
> >
> > xyplot(mpg ~ wt | cyl,
> > data=mtcars,
> > col = gear,
> > pch = carb
> > )
> >
> > There are unique pch points in the second and third panels, but these
> > points are only unique within the plots, not among all the plots (as
they
> > should be). You can see this if you use the following code:
> >
> > xyplot(mpg ~ wt | cyl,
> > data=mtcars,
> > groups = carb
> > )
> >
> > This plot looks great for one group, but if you try to invoke two
groups
> > using c(gear, carb) I think it simply takes unique combinations of
those
> > two variables and plots them as unique colors.
> >
> > Another solution given by a StackExchange user:
> >
> > mypch <- 1:6
> > mycol <- 1:3
> >
> > xyplot(mpg ~ wt | cyl,
> > panel = function(x, y, ..., groups, subscripts) {
> > pch <- mypch[factor(carb[subscripts])]
> > col <- mycol[factor(gear[subscripts])]
> > grp <- c(gear,carb)
> > panel.xyplot(x, y, pch = pch, col = col)
> > }
> > )
> >
> > This solution has the same problems as the code at the top. I think
the
> > issue causing problems with both solutions is that not every value for
each
> > group is present in each panel, and they are almost never in the same
> > order. I think R is just interpreting the appearance of unique values
as a
> > signal to change to the next pch or color. My actual data file is very
> > large, and it's not possible to sort my way out of this mess. It
would be
> > best if I could just use the value in two columns to actually define a
> > color or pch for each point on an entire plot. Is there a way to do
this?
> >
> > Ps, I had to post this via email because the Nabble site kept sending
me an
> > error message: "Message rejected by filter rule match"
> >
> > Thanks,
> > Matt
> >
> >
> >
> > *Matthew R. Snyder*
> > *~~~~~~~~~~~~~~~~~*
> > PhD Candidate
> > University Fellow
> > University of Toledo
> > Computational biologist, ecologist, and bioinformatician
> > Sponsored Guest Researcher at NOAA PMEL, Seattle, WA.
> > Matthew.Snyder6 at rockets.utoledo.edu
> > MSnyder424 at gmail.com
> >
> >
> >
> > [image: Mailtrack]
> >
<https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&>
> > Sender
> > notified by
> > Mailtrack
> >
<https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&>
> > 04/09/19,
> > 1:49:27 PM
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > 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.
I believe this is unnecessarily complicated. What the OP did not seem to
get is that he had to specify the col's and pch's in the panel function
that were actually used via appropriate subscripting. He just passed in the
whole col and pch vector by default -- subscripting is not done unless
specified.So the following does what I think he wants very simply:
xyplot(mpg ~wt|cyl, data = mtcars,
col = mtcars$gear,
pch = mtcars$carb,
panel = function(x,y, subscripts, col, pch,...)
{
panel.xyplot(x,y, col = col[subscripts], pch = pch[subscripts] )
})
Cheers,
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Tue, Apr 9, 2019 at 9:53 PM Peter Langfelder <peter.langfelder at
gmail.com>
wrote:
> Sorry for being late to the party, but has anyone suggested a minor
> but important modification of the code from stack exchange?
>
> xyplot(mpg ~ wt | cyl,
> panel = function(x, y, ..., groups, subscripts) {
> pch <- mypch[factor(carb)[subscripts]]
> col <- mycol[factor(gear)[subscripts]]
> grp <- c(gear,carb)
> panel.xyplot(x, y, pch = pch, col = col)
> }
> )
>
> From the little I understand about what you're trying to do, this may
> just do the trick.
>
> Peter
>
> On Tue, Apr 9, 2019 at 2:43 PM Matthew Snyder <msnyder424 at
gmail.com>
> wrote:
> >
> > I am making a lattice plot and I would like to use the value in one
> column
> > to define the pch and another column to define color of points.
Something
> > like:
> >
> > xyplot(mpg ~ wt | cyl,
> > data=mtcars,
> > col = gear,
> > pch = carb
> > )
> >
> > There are unique pch points in the second and third panels, but these
> > points are only unique within the plots, not among all the plots (as
they
> > should be). You can see this if you use the following code:
> >
> > xyplot(mpg ~ wt | cyl,
> > data=mtcars,
> > groups = carb
> > )
> >
> > This plot looks great for one group, but if you try to invoke two
groups
> > using c(gear, carb) I think it simply takes unique combinations of
those
> > two variables and plots them as unique colors.
> >
> > Another solution given by a StackExchange user:
> >
> > mypch <- 1:6
> > mycol <- 1:3
> >
> > xyplot(mpg ~ wt | cyl,
> > panel = function(x, y, ..., groups, subscripts) {
> > pch <- mypch[factor(carb[subscripts])]
> > col <- mycol[factor(gear[subscripts])]
> > grp <- c(gear,carb)
> > panel.xyplot(x, y, pch = pch, col = col)
> > }
> > )
> >
> > This solution has the same problems as the code at the top. I think
the
> > issue causing problems with both solutions is that not every value for
> each
> > group is present in each panel, and they are almost never in the same
> > order. I think R is just interpreting the appearance of unique values
as
> a
> > signal to change to the next pch or color. My actual data file is very
> > large, and it's not possible to sort my way out of this mess. It
would be
> > best if I could just use the value in two columns to actually define a
> > color or pch for each point on an entire plot. Is there a way to do
this?
> >
> > Ps, I had to post this via email because the Nabble site kept sending
me
> an
> > error message: "Message rejected by filter rule match"
> >
> > Thanks,
> > Matt
> >
> >
> >
> > *Matthew R. Snyder*
> > *~~~~~~~~~~~~~~~~~*
> > PhD Candidate
> > University Fellow
> > University of Toledo
> > Computational biologist, ecologist, and bioinformatician
> > Sponsored Guest Researcher at NOAA PMEL, Seattle, WA.
> > Matthew.Snyder6 at rockets.utoledo.edu
> > MSnyder424 at gmail.com
> >
> >
> >
> > [image: Mailtrack]
> > <
>
https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&
> >
> > Sender
> > notified by
> > Mailtrack
> > <
>
https://mailtrack.io?utm_source=gmail&utm_medium=signature&utm_campaign=signaturevirality5&
> >
> > 04/09/19,
> > 1:49:27 PM
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > 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.
>
[[alternative HTML version deleted]]