How do I get my graph to be evenly spaced on the X axis for a oneway analysis?

[#1]

Hello, I am trying to plot a thickness measurement on the y axis and the x axis is varying lot numbers (nominal character data).  For some reason when i go to do my Anova analysis the highest lot numbers are squeezed to the side and I am unable to figure out how to space them apart evenly like the others.  The quantity of data for these lots is smaller, however, i need them to be evenly spaced on the X axis.  I am working on JMP 17.

[#2 · Accepted solution]

From the Oneway analysis click the red triangle, select Display Options and turn off X Axis Proportional.