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<DIV>Hi All,</DIV>
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<DIV>I have been working with graphing temporal water chemistry data using ArcGIS 10, Service Pack 2. I have created some very pretty graphs and have included a trend function on the graph. I'm assuming that this is a least-squares linear trend function, (ESRI doesn't specify). The Y-axis represents the water chemistry parameter (usually ppm) and the X-axis is the sample date. I would like to retrieve the Y-intercept and the slope of the trend line. Does anyone know how to do it, or compute it from the temporal table records? I have attached a screenshot of the graph.</DIV>
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<DIV>Thanks for the help Shruggies!</DIV>
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<DIV>Greg Mauldin, GISP<BR>GIS Project Manager<BR>Tallahassee-Leon County GIS<BR>Leon County Courthouse<BR>301 S Monroe St, Room P313-F<BR>Tallahassee, FL 32301<BR>850.606.5587<BR><A href="mailto:maulding@leoncountyfl.gov">maulding@leoncountyfl.gov</A></DIV>
<DIV><A href="http://www/tlcgis.org">http://www/tlcgis.org</A></DIV>
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