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David Doggett writes: >Does anyone know of inexpensive software for interpolating >points from scanned graphs? If you can get the scanned graphs up on the screen, then there is a free software utility called cool ruler that can count the number of pixels in the horizontal or vertical dimension. You can also get the software to convert from pixels to an arbitrary unit of measure. Go to their web site: http://www.fabsoft.com/ to get more information. Steve Simon, [log in to unmask], Standard Disclaimer. STATS: STeve's Attempt to Teach Statistics. http://www.cmh.edu/stats