我正在学习使用ggvis,并且想要了解如何创建由hist生成的等效直方图。具体来说,如何设置ggvis直方图中x的bin宽度和上下限?我错过了什么?R编程ggvis直方图verses hist - 如何调整桶的大小以及定义X轴间距(ticks)
问题:如何获得ggvis直方图输出以匹配hist输出?
让我提供了一个例子:
require(psych)
require(RCurl)
require(ggvis)
if (!exists("impact")) {
url <- "https://dl.dropboxusercontent.com/u/8272421/stat/stat_one.txt"
myCsv <- getURL(url, ssl.verifypeer = FALSE)
impact <- read.csv(textConnection(myCsv), sep = "\t")
impact$subject <- factor(impact$subject)
}
describe(impact)
hist(impact$verbal_memory_baseline,
main = "Distribution of verbal memory baseline scores",
xlab = "score", ylab = "frequency")
好吧,让我们试着和ggvis ...输出不匹配重现......
impact %>%
ggvis(x = ~verbal_memory_baseline, fill := "white") %>%
layer_histograms(width = 5) %>%
add_axis("x", title = "score") %>%
add_axis("y", title = "frequency")
如何获得ggvis输出以匹配hist输出?
> sessionInfo()
R version 3.2.2 (2015-08-14)
Platform: x86_64-apple-darwin13.4.0 (64-bit)
Running under: OS X 10.11.2 (El Capitan)
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] psych_1.5.6 knitr_1.11 ggvis_0.4.2.9000 setwidth_1.0-4 colorout_1.1-1 vimcom_1.2-3
loaded via a namespace (and not attached):
[1] Rcpp_0.12.0 digest_0.6.8 dplyr_0.4.3.9000 assertthat_0.1 mime_0.3
[6] R6_2.1.1 jsonlite_0.9.16 xtable_1.7-4 DBI_0.3.1 magrittr_1.5
[11] lazyeval_0.1.10.9000 rstudioapi_0.3.1 rmarkdown_0.7 tools_3.2.2 shiny_0.12.2
[16] httpuv_1.3.3 yaml_2.1.13 parallel_3.2.2 rsconnect_0.4.1.4 mnormt_1.5-3
[21] htmltools_0.2.6
Steven, 谢谢您如此及时回答我的问题。我正在阅读边界并勾选ggvis信息。 – Technophobe01
@PeteJarvis很高兴帮助! :) –
也可以在'layer_histogram'中尝试'center'。我想你想把它设置为.5。 – Elin