Mischief on legend when size=1 added to geom_line
Hi Arthur: # Just move size outside 'aes' like this: p <- ggplot(df1, aes(Year, PctProf, group = Group)) p + geom_line(aes(color = Group),size=1) # to make the background white just use the black and white theme: p <- ggplot(df1, aes(Year, PctProf, group = Group)) p + geom_line(aes(color = Group),size=1) + theme_bw() Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish & Wildlife Service California, USA
--- On Fri, 4/17/09, Arthur Burke <burkea at nwrel.org> wrote:
From: Arthur Burke <burkea at nwrel.org>
Subject: Mischief on legend when size=1 added to geom_line
To: ggplot2 at googlegroups.com
Date: Friday, April 17, 2009, 3:11 PM
I have a data frame consisting of a group ID, year, and
percent of
students proficient on a state test.
df1 <-
Group Year PctProf
1 Never RF 2004 87
2 Cohort 1 2004 83
3 Cohort 2 2004 84
4 Cohort 3 2004 87
5 Cohort 4 2004 73
6 Never RF 2005 85
7 Cohort 1 2005 81
8 Cohort 2 2005 81
9 Cohort 3 2005 78
10 Cohort 4 2005 72
11 Never RF 2006 83
12 Cohort 1 2006 78
13 Cohort 2 2006 78
14 Cohort 3 2006 70
15 Cohort 4 2006 80
16 Never RF 2007 82
17 Cohort 1 2007 75
18 Cohort 2 2007 73
19 Cohort 3 2007 79
20 Cohort 4 2007 75
21 Never RF 2008 83
22 Cohort 1 2008 81
23 Cohort 2 2008 81
24 Cohort 3 2008 76
25 Cohort 4 2008 62
I am interested in a plot of percent proficient by group
across time, so
...
p <- ggplot(df1, aes(Year, PctProf, group = Group))
p + geom_line(aes(color = Group))
... creates the plot nicely.
However, adding the size=1 parameter results in the legend
showing a "1"
and a line color for 1, as well as "Group" and
the line colors for the
groups.
p <- ggplot(df1, aes(Year, PctProf, group = Group))
p + geom_line(aes(color = Group, size=1))
I can run the plot with the default size for line of
course, but I do
want to thicken the lines a bit. Can someone help me out
with that?
Secondly, how do I set the background to clear?
Thanks!
Art
------------------------------------------------------------------
Art Burke
Northwest Regional Educational Laboratory
101 SW Main St, Suite 500
Portland, OR 97204-3213
Phone: 503-275-9592 / 800-547-6339
Fax: 503-275-0450
burkea at nwrel.org
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