Hi -

Thanks for your response!

We thought so too, so we looked up some regression formula esp. at http://www.easycalculation.com/statistics/learn-regression.php.

Then we extrapolated which column values are to be generated to get the slope and intercept of the straight line, and an SP was written. Implemented it in SSRS using a straight line type, while rest data were implemented on scatter chart type.

The result looks good - see attachment.

BR, Indra