R: error in qplot from ggplot2: argument "env" is missing, with no default
ggplot2, r
Solution
The reason for that error (the message is quite obscure, I agree) is that you are trying to use `geom_area` (`qplot(geom = "area")` is roughly the same as `+ geom_area()`). Whereas `geom_density` only requires `x` (`x = Dist` in your case), this is not enough for `geom_area`, as it additionally uses `ymax` (for help pages, see this, which links to this).
Here's an example of density and frequency plots which you may adjust for your data:
ggplot(data=diamonds, aes(x=carat, fill=clarity)) + geom_density(alpha=0.5)
ggplot(data=diamonds, aes(x=carat, colour=clarity)) + geom_freqpoly()
Your code sample is not reproducible, so I cannot verify the following line, but
ggplot(data=testx, aes(x=Dist, colour=Animal)) + geom_freqpoly() +
scale_x_log10() + scale_y_log10()
may be what you need.
Problem
I am using qplot from ggplot2 to plot the distances of seeds dispersed by different species in R. When I use `geom='density'`, it works just fine! But what I really want is a frequency/area plot, for which I get an error I do not know how to address. This works: ``` qplot(Dist,data=testx,geom="density",fill=Animal,log=c('x','y'),alpha=I(0.5)) ``` This doesn't work: ``` qplot(Dist,data=testx,geom="area",fill=Animal,log=c('x','y')) Error in exists(name, envir = env, mode = mode) : argument "env" is missing, with no default ``` Help? Thanks!