R geom_hexbin将bincount映射到alpha

我希望geom_hex bincount变为alpha，就像这样

不知怎的，这对我不起作用，会有什么问题？（ggplot2的开发版本？）：

---

从那以后，软件包中发生了一些变化，改变了

.count..

和

.density..

使用

hexbin

的方式。@RichardTelford的链接指向一个已解决的github问题，即

.density..

，但

.count..

功能尚未恢复。但是，我们可以简单地使用

.value..

ggplot(dm, aes(y = price, fill = variable, x = value)) + 
  facet_wrap(~variable, ncol = 1, scales  = 'free_x') + 
  stat_binhex(aes(alpha = ..value..), colour = 'grey80') + 
  scale_alpha(name = 'Frequency', range = c(0,1)) + 
  theme_bw() + 
  scale_fill_manual('Variable', values = setNames(c('darkblue','yellow4'), c('depth','carat')))

我已将此作为一个问题报告

R version 3.2.3 (2015-12-10)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 16.04.1 LTS

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C               LC_TIME=nl_NL.UTF-8        LC_COLLATE=en_US.UTF-8     LC_MONETARY=nl_NL.UTF-8    LC_MESSAGES=en_US.UTF-8    LC_PAPER=nl_NL.UTF-8      
 [8] LC_NAME=C                  LC_ADDRESS=C               LC_TELEPHONE=C             LC_MEASUREMENT=nl_NL.UTF-8 LC_IDENTIFICATION=C       

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

other attached packages:
[1] hexbin_1.27.1      reshape2_1.4.1     ggplot2_2.1.0.9000

loaded via a namespace (and not attached):
 [1] Rcpp_0.12.7      lattice_0.20-33  assertthat_0.1   grid_3.2.3       plyr_1.8.4       gtable_0.2.0     magrittr_1.5     scales_0.4.0     stringi_1.1.1    tools_3.2.3      stringr_1.1.0    munsell_0.4.3   
[13] rsconnect_0.4.3  colorspace_1.2-6 tibble_1.2 

ggplot(dm, aes(y = price, fill = variable, x = value)) + 
  facet_wrap(~variable, ncol = 1, scales  = 'free_x') + 
  stat_binhex(aes(alpha = ..value..), colour = 'grey80') + 
  scale_alpha(name = 'Frequency', range = c(0,1)) + 
  theme_bw() + 
  scale_fill_manual('Variable', values = setNames(c('darkblue','yellow4'), c('depth','carat')))