> str(MDist.median)
'data.frame': 2880 obs. of 6 variables:
$ groupname: Factor w/ 8 levels "rowA","rowB",..: 1 1 1 1 1 1 1 1 1 1 ...
$ fCycle : Factor w/ 6 levels "predark","Cycle 1",..: 1 1 1 1 1 1 1 1 1 1 ...
$ fPhase : Factor w/ 2 levels "Light","Dark": 2 2 2 2 2 2 2 2 2 2 ...
$ starttime: num 0.3 60 120 180 240 300 360 420 480 540 ...
$ dists : Factor w/ 3 levels "inadist","smldist",..: 1 1 1 1 1 1 1 1 1 1 ...
$ value : num 110 123 124 128 132 ...
示例数据:
> head(MDist.median)
groupname fCycle fPhase starttime dists value
1 rowA predark Dark 0.3 inadist 110.00
2 rowA predark Dark 60.0 inadist 123.25
3 rowA predark Dark 120.0 inadist 124.10
4 rowA predark Dark 180.0 inadist 128.35
5 rowA predark Dark 240.0 inadist 131.80
6 rowA predark Dark 300.0 inadist 140.30
我的区域图叠加了3种
dists
在y轴上按开始时间在x轴上。
dists.med.areaplot <- qplot(starttime,value,fill=dists,facets=~groupname,
geom='area',data=MDist.median, stat='identity') +
labs(y='median distances', x='time(s)', fill='Distance Types')+
opts(title='Changes in Fish Activity and Activity Type') +
scale_fill_brewer(type='seq')
我想在每个图后面添加垂直矩形,这些图由每个fCycle的min和max starttimes水平定位,其中fPhase==“Dark”。我在GIMP中编辑了我的graphset以显示我的意思:
我一直在尝试使用主题,但效果不太好。思想?
所以,使用这个例子(来自Hadley的
website
(unemp <- qplot(date, unemploy, data=economics, geom="line",
xlab = "", ylab = "No. unemployed (1000s)"))
presidential <- presidential[-(1:3), ]
yr <- range(economics$unemploy)
unemp + geom_rect(
aes(NULL, NULL, xmin = start, xmax = end, fill = party),
ymin = yr[1], ymax = yr[2], data = presidential) +
scale_fill_manual(values = alpha(c("blue", "red"), 0.2)
)
我可以用我的数据:
dists.med.areaplot + geom_rect(
aes(NULL, NULL, xmin = phase_start, xmax = phase_end, fill = fPhase),
ymin = -Inf, ymax = Inf, data = phase_starts) +
scale_fill_manual(values = alpha(c("#cccccc", "#000000"), 0.2)
)
这增加了光明和黑暗的类别的传说和改变所有的颜色为灰色。
如果我忘了
scale_fill_manual(values = alpha(c("#cccccc", "#000000"), 0.2)
,我得到的矩形,我希望仍然与图例的变化,但他们是完全不透明的,在我原来的图形,并使用前2个颜色在我的颜色序列。
我怎样才能在原始图后面绘制几何图形?
