r - ggplot2中的变音符号

Question

我在 ggplot2 图中显示变音符号时遇到了一些问题。

MWE：

library(tidyverse)

tbl <- tibble(
  n = c(1, 1),
  ph = c("a", "b")
)

tbl %>%
  ggplot(aes(ph, n)) +
  # can change typeface to anything that supports diacritics
  theme(text = element_text(family = "DejaVu Sans", size = 20)) +
  labs(title = "t\u0325ʃ\u0325q\u0325j\u033b")

输出：

预期输出：

我尝试ggsave()使用device = cairo_pdfand device = svg) 保存绘图，但输出是相同的（即变音符号放置不正确）。device = svglite从 svglite 包中使用时，生成一个.svg在浏览器和矢量图形应用程序（Sketch）中正确呈现的文件。

如何确保按预期放置变音符号？

我的会话信息：

─ Session info ───────────────────────────────────────────────────────────────────────────────────────────────────
 setting  value                       
 version  R version 4.0.3 (2020-10-10)
 os       macOS Big Sur 10.16         
 system   x86_64, darwin17.0          
 ui       RStudio                     
 language (EN)                        
 collate  en_GB.UTF-8                 
 ctype    en_GB.UTF-8                              
 date     2021-02-21                  

─ Packages ───────────────────────────────────────────────────────────────────────────────────────────────────────
 package      * version date       lib source        
 assertthat     0.2.1   2019-03-21 [1] CRAN (R 4.0.2)
 backports      1.2.1   2020-12-09 [1] CRAN (R 4.0.2)
 broom          0.7.5   2021-02-19 [1] CRAN (R 4.0.3)
 cachem         1.0.4   2021-02-13 [1] CRAN (R 4.0.2)
 callr          3.5.1   2020-10-13 [1] CRAN (R 4.0.2)
 cellranger     1.1.0   2016-07-27 [1] CRAN (R 4.0.2)
 cli            2.3.0   2021-01-31 [1] CRAN (R 4.0.2)
 colorspace     2.0-0   2020-11-11 [1] CRAN (R 4.0.2)
 convertGraph * 0.1     2016-04-16 [1] CRAN (R 4.0.2)
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 DBI            1.1.1   2021-01-15 [1] CRAN (R 4.0.2)
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 desc           1.2.0   2018-05-01 [1] CRAN (R 4.0.2)
 devtools       2.3.2   2020-09-18 [1] CRAN (R 4.0.2)
 digest         0.6.27  2020-10-24 [1] CRAN (R 4.0.2)
 dplyr        * 1.0.4   2021-02-02 [1] CRAN (R 4.0.2)
 ellipsis       0.3.1   2020-05-15 [1] CRAN (R 4.0.2)
 evaluate       0.14    2019-05-28 [1] CRAN (R 4.0.1)
 farver         2.0.3   2020-01-16 [1] CRAN (R 4.0.2)
 fastmap        1.1.0   2021-01-25 [1] CRAN (R 4.0.2)
 forcats      * 0.5.1   2021-01-27 [1] CRAN (R 4.0.2)
 fs             1.5.0   2020-07-31 [1] CRAN (R 4.0.2)
 generics       0.1.0   2020-10-31 [1] CRAN (R 4.0.2)
 ggplot2      * 3.3.3   2020-12-30 [1] CRAN (R 4.0.2)
 glue           1.4.2   2020-08-27 [1] CRAN (R 4.0.2)
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 here           1.0.1   2020-12-13 [1] CRAN (R 4.0.2)
 hms            1.0.0   2021-01-13 [1] CRAN (R 4.0.2)
 htmltools      0.5.1.1 2021-01-22 [1] CRAN (R 4.0.2)
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 knitr          1.31    2021-01-27 [1] CRAN (R 4.0.2)
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 pkgbuild       1.2.0   2020-12-15 [1] CRAN (R 4.0.2)
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 processx       3.4.5   2020-11-30 [1] CRAN (R 4.0.2)
 ps             1.5.0   2020-12-05 [1] CRAN (R 4.0.2)
 purrr        * 0.3.4   2020-04-17 [1] CRAN (R 4.0.2)
 R6             2.5.0   2020-10-28 [1] CRAN (R 4.0.2)
 Rcpp           1.0.6   2021-01-15 [1] CRAN (R 4.0.2)
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 rstudioapi     0.13    2020-11-12 [1] CRAN (R 4.0.2)
 rsvg         * 2.1     2020-05-19 [1] CRAN (R 4.0.2)
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 sessioninfo    1.1.1   2018-11-05 [1] CRAN (R 4.0.2)
 stringi        1.5.3   2020-09-09 [1] CRAN (R 4.0.2)
 stringr      * 1.4.0   2019-02-10 [1] CRAN (R 4.0.2)
 svglite      * 2.0.0   2021-02-20 [1] CRAN (R 4.0.3)
 systemfonts    1.0.1   2021-02-09 [1] CRAN (R 4.0.2)
 testthat       3.0.2   2021-02-14 [1] CRAN (R 4.0.2)
 tibble       * 3.0.6   2021-01-29 [1] CRAN (R 4.0.2)
 tidyr        * 1.1.2   2020-08-27 [1] CRAN (R 4.0.2)
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标签： rggplot2utf-8