我正在尝试在ggplot块中编写这段代码。
ggtitle(expression(atop(bold(paste0("Control rates Vs Mean yield for " , deparse(substitute(field)))), atop(italic("(Anova:TukeyHSD)"), ""))))
它正在生成此错误
Error in grid.Call(C_textBounds, as.graphicsAnnot(x$label), x$x, x$y, :
polygon edge not found
,并且如果可行,地块将保持原样:paste0("Control rates Vs Mean yield for ", deparse(substitute(field)))
我该如何正确写这个ggtitle?