layer_histograms not working w/o a stack = FALSE argument

[edgararuiz-zz]

layer_histograms not working w/o a stack = FALSE argument

[duttashi]

@edgararuiz this code, mtcars %>% ggvis(~mpg) %>% layer_histograms() works for me. My sessioninfo() is given below. Try updating the R version and let us know if the error persists. cheers.

> sessionInfo()
R version 3.3.3 (2017-03-06)
Platform: i386-w64-mingw32/i386 (32-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1

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

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

other attached packages:
[1] bindrcpp_0.2 ggvis_0.4.3