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[英]How can I fix missing color scale in the legend when I plot continuous color using ggplot2?
[英]In ggplot2 how can I scale the legend when using two graph types?
我正在將ggplot2與+ geom_line()+ geom_point()一起使用。 我已經解決了顏色/形狀,但是無法適當縮放圖例。 如果我什么都不做,那么它很小,如果我放大它,顏色就會擋住形狀。
您可以看到形狀和顏色都在圖例中,但是形狀正在被顏色繪制。 我想在圖例中繪制適當顏色的形狀,但不知道該怎么做。
我的情節被淹死如下:
ggplot(data=melted, aes(x=gene, y=value, colour=variable, shape=variable, group = variable, stroke=3, reorder(gene, value)))
+ theme_solarized()
+ scale_colour_solarized("blue")
+ geom_line()
+ geom_point()
+ theme(axis.text.x = element_text(angle = 90, hjust = 1), plot.title = element_text(size=16, face="bold"), legend.title=element_blank(), legend.text=element_text(size=20))
+ ggtitle('Signiture Profiles')
+ labs(x="Gene", y=expression(paste("Expression"), title="Expression"))
+ scale_colour_manual(name = "Virus / Time", labels = c("Mock", "ACali09_day1", "ACali09_day3", "ACali09_day8", "AShng113_day1", "AShng113_day3", "AShng113_day8", "AChkShng113_day1", "AChkShng113_day3", "AChkShng113_day8"), values = c("#ff420e","#89da59","#89da59","#89da59","#376467","#376467","#376467","#00293c","#00293c","#00293c"))
+ scale_shape_manual(name = "Virus / Time", labels = c("Mock", "ACali09_day1", "ACali09_day3", "ACali09_day8", "AShng113_day1", "AShng113_day3", "AShng113_day8", "AChkShng113_day1", "AChkShng113_day3", "AChkShng113_day8"), values = c(0,1,2,3,1,2,3,1,2,3))
+ guides(colour = guide_legend(override.aes = list(size=12)))
在此先感謝您提供的任何幫助。
您也許可以重新考慮如何區分變量。 您可以執行以下操作。 請注意第一行的更改,在該行中,我已分隔variable
的組成部分,而不是通過您的scale
語句設置顏色和形狀。 (我還沒有您的主題,所以我省略了)。
ggplot(data=melted, aes(x=gene,
y=value,
colour=gsub("_.*","",variable),
shape=gsub(".*_","",variable),
group = variable,
stroke=3,
reorder(gene, value))) +
geom_line() +
geom_point() +
theme(axis.text.x = element_text(angle = 90, hjust = 1),
plot.title = element_text(size=16, face="bold"),
legend.title=element_blank(),
legend.text=element_text(size=20)) +
ggtitle('Signiture Profiles') +
labs(x="Gene", y=expression(paste("Expression"), title="Expression")) +
guides(shape = guide_legend(override.aes = list(size=5)),
colour = guide_legend(override.aes = list(size=5)))
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