4
ggvis將根據我傳遞的因子列自動對我的圖進行着色。所以如果我的因子列被命名爲「area」,我可以編寫它並且它會完美地執行。傳遞列名作爲字符串填充ggvis
names = c("Bacilli", "Actinobacteria", "area")
b_counts <- c(1,5,8,100,34,3)
a_counts <- c(1,3,11,55,67,11)
area <- c("Gut", "Skin", "Gut", "Gut", "Skin", "Oral")
rel_data <- data.frame(b_counts, a_counts, area)
names(rel_data) <- names
library(ggvis)
library(dplyr)
rel_data %>% ggvis(x = input_select(names(rel_data[,-3]), map = as.name, label = "X Axis"),
y = input_select(names(rel_data[,-3]), map = as.name, label = "Y Axis")) %>%
filter(area %in% eval(input_checkboxgroup(unique(rel_data$area), selected = "Gut"))) %>%
layer_points(fill = ~area) ### section of interest
但是,如果我想將字段的名稱作爲字符串傳遞,我無法使其工作。例如
region <- "area"
layer_points(fill = ~region)
我試過as.name,eval,quote等,但我似乎無法得到任何工作。有沒有人有任何想法?
歡迎您! – tonytonov 2015-04-04 13:33:33