Hello, I am a beginner with ggplot and after doing simple graphs (histogram, segments etc.) some questions came up:
1) I tried to do a histogram, but nothing is displayed although it works with another vector. I think it is because of the very small values (n=1000, min=1.222e-24 max, 1.890e-20). I used qplot(variable,geom="histogram")... If do it with the standard plot function it works perfectly. 2) I want to use scale_colour_gradient(). Is there any reference where I can find the predefined colour-palletes like rainbow etc. and how they look like? 3) How can I change the white grid in the background? In some cases I'd like to remove the white grid 4) How are the ticks on the X-axis calculated? Can they be changed in a way that always 5 ticks with the corresponding numbers (labels) are displayed on the X-axis. Thank you very much Johannes -- ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
