我击中了可怕的" $运算符对原子向量无效"错误。当我添加gvisLineChart时会发生这种情况。有什么建议吗?
library(shiny)
library(googleVis)
#this is a dput of a sql query to make the example reproducible.
#In reality this will be an RODBC sqlQuery result
dataset <- structure(list(id = c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L),
value = c(1.68294196961579, 82.4641565111739, 83.3056274959818,
6.73176787846317, 5.89029689365528, 2.52441295442369, 4.20735492403948,
0.841470984807897, 5.04882590884738, 15.1464777265421)),
.Names = c("id", "value"), row.names = c(NA, 10L), class = "data.frame")
ui <- shinyUI(
plotOutput("motionPlot")
)
server <- shinyServer(function(input, output) {
output[["motionPlot"]] <- renderGvis({
Line <- gvisLineChart(dataset, xvar=c("id"), yvar=c("value"))
plot(Line)
})
})
shinyApp(ui = ui, server = server)
答案 0 :(得分:1)
googleVis图不像R中的常规图。常规图产生静态图像,但googleVis基本上生成带有HTML和javascript数据的迷你网页。因此,您不应使用plotOutput
,应使用htmlOutput
将其呈现给页面。此外,您也不需要使用plot()
。这将适用于您的示例数据
ui <- shinyUI(
htmlOutput("motionPlot")
)
server <- shinyServer(function(input, output) {
output[["motionPlot"]] <- renderGvis({
gvisLineChart(dataset, xvar=c("id"), yvar=c("value"))
})
})
shinyApp(ui = ui, server = server)
我通过谷歌搜索“闪亮的gvisLineChart”找到了更多的例子here。使用googleVis_0.6.1
,shiny_0.13.2
,R 3.2.5