我正在使用 R 编程语言。
我按照这里的教程https://rstudio.github.io/dygraphs/制作以下图表:
我尝试为这个例子模拟一些数据:
library(dygraphs)
set.seed(1)
date <- seq(as.Date("2010-01-01"), as.Date("2010-12-01"), by = "month")
var1 <- rnorm(length(date), mean = 100, sd = 10)
var2 <- rnorm(length(date), mean = 50, sd = 5)
df <- data.frame(date, var1, var2)
然后,我尝试制作这个图表:
dygraph(df, main = "Stacked Graph") %>%
dySeries("var1", label = "Var1") %>%
dySeries("var2", label = "Var2") %>%
dyOptions(stackedGraph = TRUE) %>%
dyRangeSelector(height = 20)
但是我收到以下错误:
Error in dygraph(df, main = "Stacked Graph") :
Unsupported type passed to argument 'data'.
有人可以告诉我如何解决这个问题吗?
谢谢!
更新:我想我能够弄清楚:
library(xts)
df_xts <- xts(df[,-1], order.by = df$date)
dygraph(df_xts, main = "Stacked Graph") %>%
dySeries("var1", label = "Var1") %>%
dySeries("var2", label = "Var2") %>%
dyOptions(stackedGraph = TRUE) %>%
dyRangeSelector(height = 20)