Dr. Bolker thank you for the help. I have figured out how to make this
do what I wanted - re:inline. I wanted to use the pch variable as the
number for the R plotting symbol. I hope that makes more sense.
kindest regards,
Stephen
On Tue 17 Jul 2012 10:31:07 PM CDT, Ben Bolker wrote:
Stephen Sefick <sas0025 <at> auburn.edu> writes:
I'm sorry I didn't give the correct code, or explaination; the
shape=pch doesn't work anymore. For example this used to work, but no
longer can accept continuous values:
#example code
a <- 1:10
b <- 1:10
pch <- 1:10
q <- data.frame(a,b,pch)
qplot(a,b, shape=pch)
if you change the above line of code to
qplot(a,b, shape=pch)+scale_shape_identity()
Not entirely clear what you want it to do: how *would* you
map a continuous variable onto shape (assuming you're not
using something like Chernoff faces)? Does
qplot(a,b,shape=factor(pch,levels=1:10))
do what you want?
I will have a look at these soon.
A couple of possibly useful recent Stack Overflow posts
(URLs broken):
http://stackoverflow.com/questions/10002627/
ggplot2-0-9-0-automatically-dropping-unused-factor-levels-from-plot-legend
http://stackoverflow.com/questions/11361404/
consistent-legend-colors-with-qplot
many thanks,
Stephen Sefick
On 07/17/2012 07:28 PM, Stephen Sefick wrote:
Is there a way to use a continuous variable to pch in qplot? I
believe this worked in previous version. I need to specify certain
values of a shape for particular points so that multiple graphs all
show the same shapes for the same streams. I have gone to the
original data and added a pch column that I would like to use to
specify the shapes to pch in qplot. Any help would be greatly
appreciated.
#example code
a <- 1:10
b <- 1:10
pch <- 1:10
q <- data.frame(a,b,pch)
qplot(a,b, pch=pch)
Many thanks,
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