斜体化主词而不是下标词

Italicizing the main word but not the subscripted word

我想知道如何让我的text()中的主词d显示为斜体,而下标词"unbiased" 保留为普通文本?

请看下图下面我的R代码

这是我的 R 代码:

plot(1:10, ty="n")

text( 4, 4.5, bquote(italic(d[(unbiased)])), cex = 5)

将 "unbiased" 放在 italic 之外或使用 plain:

plot(1:10, ty = "n")
# original
text(5, 4, bquote(italic(d[(unbiased)])), cex = 5)
# use plain
text(5, 6, bquote(italic(d[(plain(unbiased))])), cex = 5)
# keep "unbiased" outside italic
text(5, 8, bquote(italic(d)[(unbiased)]), cex = 5)