box plots

• Bring on the box plots
• Points of View: Bar charts and box plots
• Points of Significance: Visualizing samples with box plots
• Box plot(wikipedia)
• 40 years of boxplots
• Methods for Presenting Statistical Information: The Box Plot
• Beanplot: A Boxplot Alternative for Visual Comparison of Distributions

BoxPlotR

• BoxPlotR
• BoxPlotR: a web tool for generation of box plots

This application allows users to generate customized box plots in a number of variants based on their data. A data matrix can be uploaded as a file or pasted into the application. Basic box plots are generated based on the data and can be modified to include additional information. Additional features become available when checking that option. Information about sample sizes can be represented by the width of each box where the widths are proportional to the square roots of the number of observations n. Notches can be added to the boxes. These are defined as +/-1.58*IQR/sqrt(n) which gives roughly 95% confidence that two medians are different. It is also possible to define the whiskers based on the ideas of Spear and Tukey. Additional options of data visualization (violin and bean plots) reveal more information about the underlying data distribution. Plots can be labeled, customized (colors, dimensions, orientation) and exported as eps, pdf and svg files.……【阅读全文】