ggproto

I am following up a discussion started at: How can I make geom_area() leave a gap for missing values? . It seems like geom_ribbon is not longer leaving gaps for missing values. Please try to execute the reproducible example in the attached link. I cannot get the answer described. Can you? Looks like a bug in ggplot2 , there seems to be a missing handle_na function that needs to be added as a part of a new unified way of dealing with NA values. Update: The first post here refined an entire new ggproto to fix this, but I realized that as a one-liner workaround you can just override the handle_na

As part of an effort to remove a specific geom from a plot I've already created (SO link here ), I'd like to dynamically determine the geom type of each layer of a ggplot2 object. Assuming I don't know the order in which I added layers, is there a way to dynamically find layers with a specific geom? If I print out the layers like I do below I can see that the layers are stored in a list, but I can't seem to access the geom type. library(ggplot2) dat <- data.frame(x=1:3, y=1:3, ymin=0:2, ymax=2:4) p <- ggplot(dat, aes(x=x, y=y)) + geom_ribbon(aes(ymin=ymin, ymax=ymax), alpha=0.3) + geom_line()

I am having a little trouble with my radar chart in R. Even though the plot is fine I am getting the following warning: > source('~/.active-rstudio-document') Warning message: In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else paste0(labels, : duplicated levels in factors are deprecated > radar Warning messages: 1: In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else paste0(labels, : duplicated levels in factors are deprecated 2: In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else paste0(labels, : duplicated levels in factors are

I would like to draw a hollow histogram that has no vertical bars drawn inside of it, but just an outline. I couldn't find any way to do it with geom_histogram . The geom_step + stat_bin combination seemed like it could do the job. However, the bins of geom_step + stat_bin are shifted by a half bin either to the right or to the left, depending on the step's direction= parameter value. It seems like it is doing its "steps" WRT bin centers. Is there any way to change this behavior so it would do the "steps" at bin edges? Here's an illustration: d <- data.frame(x=rnorm(1000)) qplot(x, data=d,

Say have a linear model LM that I want a qq plot of the residuals. Normally I would use the R base graphics: qqnorm(residuals(LM), ylab="Residuals") qqline(residuals(LM)) I can figure out how to get the qqnorm part of the plot, but I can't seem to manage the qqline: ggplot(LM, aes(sample=.resid)) + stat_qq() I suspect I'm missing something pretty basic, but it seems like there ought to be an easy way of doing this. EDIT: Many thanks for the solution below. I've modified the code (very slightly) to extract the information from the linear model so that the plot works like the convenience plot in