R：带多行文字的直方图字幕：如何在列中获得表格对齐？

Posted 2023-03-07

【中文标题】R：带多行文字的直方图字幕：如何在列中获得表格对齐？

【英文标题】：R: Histogram subtitle with mtext: how to get tabular alignment in columns?

【发布时间】：2017-09-01 21:01:29

【问题描述】：

我有一个带有多行字幕的情节：

文本的当前代码：

bq1 <- bquote("Raw: "
              ~ mu 
              ~ "=" 
              ~ .(format(round(mean(stepsperday$steps), digits=2), big.mark=","))
              ~ ", " 
              ~ sigma 
              ~ "=" 
              ~ .(format(round(sd(stepsperday$steps), digits=2), big.mark = ","))
              ~ ", median ="
              ~ .(format(median(stepsperday$steps), big.mark = ","))
)

bq2 <- bquote("Imputed: "
              ~ mu 
              ~ "=" 
              ~ .(format(round(mean(stepsperday.imputed$steps), digits=2), big.mark=","))
              ~ ", " 
              ~ sigma 
              ~ "=" 
              ~ .(format(round(sd(stepsperday.imputed$steps), digits=2), big.mark = ",", digits = 6))
              ~ ", median ="
              ~ .(format(median(stepsperday.imputed$steps), big.mark = ","))
)

mytext <- list(bq2, bq1)
mtext(do.call(expression, mytext),side=3,line=0:1, cex=.75)

我希望 2 行在相应的数据位上水平对齐 - 平均值、标准差、中位数，就像它们在表格中一样。

有什么办法吗？

感谢任何提示，

sff

【问题讨论】：

我在bq1中的“Raw”前面放了7个空格，得到了很好的对齐效果

调用 mtext 两次，一次用于raw\nImputed，一次用于其余的，使用不同的 adj

感谢@RichardTelford - 按照您的建议逐列执行 mtext，按照 g5w 的建议策略性地放置空格。希望有一个更“结构化”的解决方案，但是哦。

【参考方案1】：

根据 cmets，以下内容就足够了：

data1 <- "      Raw:"
data2 <- "Imputed:"
mytext1 <- list(data2, data1)
mtext(do.call(expression, mytext1), side=3, line=0:1, adj=c(.23, .23), cex=.75)

bq1 <- bquote("  " ~ mu 
              ~ "=" 
              ~ .(format(round(mean(stepsperday$steps), digits=2), big.mark=","))
              ~ " " 
              ~ sigma 
              ~ "=" 
              ~ .(format(round(sd(stepsperday$steps), digits=2), big.mark = ","))
              ~ " median ="
              ~ .(format(median(stepsperday$steps), big.mark = ","))
)

bq2 <- bquote("   " ~ mu 
              ~ "=" 
              ~ .(format(round(mean(stepsperday.imputed$steps), digits=2), big.mark=","))
              ~ " " 
              ~ sigma 
              ~ "=" 
              ~ .(format(round(sd(stepsperday.imputed$steps), digits=2), big.mark = ",", digits = 6))
              ~ "   median ="
              ~ .(format(median(stepsperday.imputed$steps), big.mark = ","))
)

mytext <- list(bq2, bq1)
mtext(do.call(expression, mytext), side=3, line=0:1, adj=c(.6, .6), cex=.75)

产生输出：