Last week I showed how to make tornado charts in JMP and asked for input on the utility of these types of visualization. Here are thumbnails of the two alternative views of US population by age and sex. One commenter pointed out that the back-to-back bars of the tornado style
During the Discovery 2008 conference, I heard a number of requests for tornado charts. Later, I realized a tornado chart is basically a horizontal, stacked bar chart with one negative variable and one positive variable, which is something JMP 7 can already handle. They're also called back-to-back charts, comparative histograms
The JMP Scripting Guide provides a sample script for comparing two similar data tables. For trickier cases, you can export the tables as text and use an external text diff tool. When there aren't too many columns, you can also try a visual comparison in JMP. I recently ran across
My Tuning Graphs talk at the JMP User Conference was mostly a live demo of various ways to customize JMP graphs, so there weren't any slides to put on the USB thumb drive of conference proceedings. However, my sample files are now available in the new JMP Extras download area,
One of those handy, little-known features of JMP that's been around for a while is the "Color or Mark by Column" command in the Rows menu. You pick a column from your data table, and JMP will apply colors or markers to each row based on the row's value for
Though JMP 6 and earlier support full RGB color in most graphics, row state colors used for data marks have been limited to the colors in JMP's general-purpose 65-color palette. With JMP 7, that limitation has been lifted. How do you set row states to colors that are not in