Problem with ggplot

[LaurenceJ]

The plotting went okay, but I only can see a grey screen. What can I do?

[mrmallironmaker]

You've told ggplot to start making a plot, but you haven't told ggplot what you want on that plot. You need to add something like geom_point(aes(x=your_x_column_name, y=your_y_column_name)) to the plot for it to display data.

Perhaps this might help: https://r4ds.had.co.nz/data-visualisation.html

[LaurenceJ]

Thank you! But than I get this...

[Matthias]

It's easier to help you if you copy your code as text not as screenshot!

Is OV3_1 your dataframe?
then it would be:
ggplot(OV3_1) +
geom_point(aes(x = tijd, y = automot))

[LaurenceJ]

That is a ggpredict of a data.frame:

ggpredict(modelOV3_1, "tijd")
OV3_1 <- ggpredict(modelOV3_1, "tijd")
ggplot(OV3_1) +
geom_point(aes(x = "tijd", y = "automot")) + lines=sit_automsragg

But I still get an error

[andresrcs]

Hi!

To help us help you, could you please prepare a reproducible example (reprex) illustrating your issue? Please have a look at this guide, to see how to create one:

FAQ: How to do a minimal reproducible example ( reprex ) for beginners

A minimal reproducible example consists of the following items: A minimal dataset, necessary to reproduce the issue The minimal runnable code necessary to reproduce the issue, which can be run on the given dataset, and including the necessary information on the used packages. Let's quickly go over each one of these with examples: Minimal Dataset (Sample Data) You need to provide a data frame that is small enough to be (reasonably) pasted on a post, but big enough to reproduce your issue. Let's say, as an example, that you are working with the iris data frame head(iris) #> Sepal.Length Sepal.Width Petal.Length Petal.Width Species #> 1 5.1 3.5 1.4 0.…