[R] Plotting a gragh or histogram in a certain colour

Dear Sir, Just started using R. I want to plot x>-1:20, for example, in the colour blue. How do I do this? Regards, Ivo [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-hel

[R] Help with histogram intervals

Dear Sir, How do I change the intervals on the x axis of a histogram plot; let us say for example the intervals were 0,5,10,15,and 20, and I wanted to change the intervals to 0,2,4,6,8,10,12,14,16,18,20. I look forward to receiving your words of wisdom. Ivo [[alternative HTML ver

[R] Using t tests

statistically significantly different from those in group y? I look forward to your thoughts. Ivo Gwanmesia [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

[R] Combining histograms and distribution curve

Dear Sir, I am reviewing a group of patients who had a surgical procedure. The histogram of the age frequency has a bimodal distribution. I am trying to emphasise this by adding a distribution curve on the histogram. Let's say the ages are 8, 9, 7, 6, 7, 8, 5, 4, 16, 12, 11, 10, 8, 7, 9 fo