I use table variables when parameters are used in several columns, and parameters otherwise. The calculations work, but an overlay plot of a formula with one column variable does not allow a function plot, i.e., is not smooth, if the formula includes a table variable. Is this a glitch in JMP7 or is there a work around?
My bad. Had two columns with similar names and one was character. Switched to the numeric one and it works! Glitch was in the user. Sigh.