Martin Maechler пишет: > Boxplots were invented by John W. Tukey and I think should be > counted among the top "small but smart" achievements from the > 20th century. Very wisely he did *not* use mean and standard deviations. > > Even though it's possible to draw boxplots that are not boxplots > (and people only recently explained how to do this with R on this > mailing list), I'm arguing very strongly against this. > > If I see a boxplot - I'd want it to be a boxplot and not have > the silly (please excuse) 10%--------90% whiskers which > declare 20% of the points as outliers {in the boxplot sense}. > > If you want the mean +/- sd plot, do *not* misuse boxplots > for them, please! >
So I analize genetics data. I have some factor (gene variant, c(1,2,3)) and the quantitative variable corresponding to that factor. How do I visualize this situation? Compare mean of samples corresponding to factor values? Should boxplot support 'mean-in-the-middle', it would fit my needs ideally. How do I plot mean +/- SD plot? Also there is a way to rewrite boxplot.stats and replace "fivenum" there for self-made function. Then I would need to write self-made boxplot.formula (or boxplot.default?) function. And all this stuff would not be configurable. I'm still novice in R, so I need simple way to pre-visualize my data and estimate approximate result. -- Evgeniy, ICQ 38317310. ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html