Sorry, I missed out an important peirce of information - I need to generate the order=(0 to highval by stepval) automatically based on the value of "highval". I am generating a large number of graphs automatically, and so manually stipulating the range is not really what I wanted. (See message below for my original question).

Cheers,

Peter.

************** original message ************************** Does anyone have a formula that can be used to generate appropriate values and spacings for the y-axis on a graph.

I am aware that SAS/GRAPH (like most graphic packages) calculated this automatically. However I am using the annotate facility to insert confidence limits, that sometimes are outside the automically generated range. All graphs have the x-axis at y=0. Therefore, if the maximum upper confidence interval is say 103, I would like the y axis to be 0 to 120 by 20.

I thought that EXCEL and SAS must use some formula and thought someone out there might know it.

Hope this makes sense :)

Cheers,

Peter Brisbane, Australia