Shiny not displaying my ggplot as I'd expect

Question

What\'s keeping my little Shiny app from displaying my ggplot? When I replace the code in renderPlot() with an example using the base plot function it comes together. I\'m

Answer 1

There are two issues here.

First, you shouldn't subset in aes -- it expects column names. Instead, subset the data.frame that you provide to ggplot (thanks to @Roland from R chat)

Second, you must explicitly print your ggplot object in your shiny app.

Try this:

p <- ggplot(finalDat[finalDat$City == input$city,], aes(x = Year, y = Value))
p <- p + geom_point()
print(p)