Question

我已按照xkcd简介（https://cran.r-project.org/web/packages/xkcd/vignettes/xkcd-intro.pdf）中的教程安装了“ xkcd”字体，并安装了xkcd软件包。

library(xkcd)
>fonts()
  [1] "xkcd"                            "Agency FB"                      
  [3] "Algerian"                        "Arial Black"
  ...

但是当尝试使用软件包中的第一个示例时，字体似乎没有显示出来：

if( 'xkcd' %in% fonts()) {
  p <- ggplot() + geom_point(aes(x=mpg, y=wt), data=mtcars) +
     theme(text = element_text(size = 16, family = "xkcd"))
  } else {
    warning("Not xkcd fonts installed!")
     p <- ggplot() + geom_point(aes(x=mpg, y=wt), data=mtcars)
    }
p

在使用mtcars示例时，我得到了这个尴尬的图：

xrange <- range(mtcars$mpg)
yrange <- range(mtcars$wt)
set.seed(123) # for reproducibility
p <- ggplot() + geom_point(aes(mpg, wt), data=mtcars) +
  xkcdaxis(xrange,yrange)
p

很明显，我做错了什么，但是呢？

> sessionInfo()
R version 3.5.0 (2018-04-23)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

Matrix products: default

locale:
[1] LC_COLLATE=English_Australia.1252  LC_CTYPE=English_Australia.1252   
[3] LC_MONETARY=English_Australia.1252 LC_NUMERIC=C                      
[5] LC_TIME=English_Australia.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
 [1] xkcd_0.0.6     extrafont_0.17 bindrcpp_0.2.2 cowplot_0.9.3  emmeans_1.3.2  ggplot2_3.1.0 
 [7] nlme_3.1-137   dplyr_0.7.6    tidyr_0.8.1    lmerTest_3.0-1 lme4_1.1-18-1  Matrix_1.2-14 

loaded via a namespace (and not attached):
 [1] Rcpp_0.12.17        mvtnorm_1.0-8       lattice_0.20-35     zoo_1.8-4          
 [5] digest_0.6.18       assertthat_0.2.0    utf8_1.1.4          R6_2.2.2           
 [9] plyr_1.8.4          backports_1.1.2     acepack_1.4.1       pillar_1.2.3       
[13] rlang_0.2.2         lazyeval_0.2.1      multcomp_1.4-8      data.table_1.11.8  
[17] rstudioapi_0.7      minqa_1.2.4         extrafontdb_1.0     nloptr_1.2.1       
[21] rpart_4.1-13        checkmate_1.9.1     labeling_0.3        splines_3.5.0      
[25] stringr_1.3.1       foreign_0.8-70      htmlwidgets_1.3     munsell_0.5.0      
[29] compiler_3.5.0      numDeriv_2016.8-1   pkgconfig_2.0.2     base64enc_0.1-3    
[33] htmltools_0.3.6     nnet_7.3-12         tidyselect_0.2.5    tibble_1.4.2       
[37] gridExtra_2.3       htmlTable_1.13.1    Hmisc_4.2-0         codetools_0.2-15   
[41] crayon_1.3.4        withr_2.1.2         MASS_7.3-49         grid_3.5.0         
[45] xtable_1.8-3        Rttf2pt1_1.3.7      gtable_0.2.0        magrittr_1.5       
[49] scales_1.0.0        stringi_1.1.7       estimability_1.3    cli_1.0.1          
[53] latticeExtra_0.6-28 sandwich_2.5-0      Formula_1.2-3       TH.data_1.0-10     
[57] RColorBrewer_1.1-2  tools_3.5.0         glue_1.3.0          purrr_0.2.5        
[61] parallel_3.5.0      pbkrtest_0.4-7      survival_2.41-3     yaml_2.2.0         
[65] colorspace_1.3-2    cluster_2.0.7-1     knitr_1.20          bindr_0.1.1

字体xkcd已安装，但软件包“ xkcd”在ggplot2中无效

0 个答案: