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当我将R图保存为pdf时,轴文本“℃”变成了点“...”。为什么?我正在使用 Windows 平台和 Foxit 阅读器。pdf文件中不能出现特定符号吗?
使用?plotmath;一般来说,它比嵌入字体更便携,也更省事。例如
?plotmath
plot(1:10, ylab = expression(DBR ~ Tavg ~ (degree*C))
或者
plot(1:10, ylab = expression("DBR Tavg" ~ (degree*C))
*运算符将两个参数并置,同时将~它们隔开。
*
~