我正在使用Visreg来显示具有交互项的负二项式一般线性模型。我遇到的问题是,当使用overlay = TRUE时,注意哪些行对应于“by”变量的哪一行的图例放在图表的顶部,直接在标题上。我通过在标题的末尾添加返回来尝试一种奇怪的解决方法,但是我发现当我重新调整图形的大小时,图例会被推高直到完全隐藏。
我的代码:
visreg(fit, "med.income.2010.scale", by="hs.edu.2010", overlay=TRUE,
partial=FALSE, scale="response",
main="Inspection Rates by Income and Education",
ylab="Predicted Routine Inspections",
xlab="Median Household Income (thousands)",
strip.names=c("10th Percentile", "50th Percentile", "90th Percentile"),
legend=TRUE)
有什么想法吗?
答案 0 :(得分:0)
我最终通过将visreg输出分配给对象来找到一种解决方法,(v = visreg(fit,etc ......)) 使用r的基本绘图功能(绘图(v等)...,并使用其后的图例功能绘制它。
我的完整代码是
'v= visreg(m1.routine.inspect, "med.income.2010.scale", by="hs.edu.2010", overlay=TRUE, partial=FALSE, scale="response", legend=FALSE)'
plot(v, overlay=TRUE, legend=FALSE,
main="Inspection Rates by Income and Education,\nInteraction Term Excluded",
ylab="Predicted Routine Inspections per well",
xlab="Median Household Income (thousands)",
font.lab=1,
yaxs="i",
ylim=c(0,1.1),
cex.lab=1)
legend.enhanced("bottomright",
c("10th Percentile", "50th Percentile", "90th Percentile"),
lty=1,
lwd=3,
col=c("red", "forestgreen", "royalblue"),
bty="n",
title=expression(underline("HS Grad Rate")),
horiz=FALSE,
y.intersp=.5,
x.intersp=.5,
title.adj=c(.5,0),
title.col="black",
seg.len =1,
cex=1,
yjust=.3,
text.font = NULL,
inset = .05
)
通常你会使用图例(....),但是用户发布了一个修改过的功能,可以更好地调整图例标题。