To the best of my knowledge, you cannot get the calculated value of a trendline point for a given x-value from the chart. You can make a feature request <http://code.google.com/p/google-visualization-api-issues/issues/list> to add support for getting the calculated value of a trendline point, if you like.
On Tuesday, October 14, 2014 7:13:50 PM UTC-4, Zhenyu Hu wrote: > > Dear All, > > I am using google chart api to draw a scattered polynomial trend line. > > Is there a way to calculate the value of Y for the given value of X for > Scatter Chart? > I didn't find existing method to do that, however I can get the equation > text, I think I can parse the text equation and do the calculation using > JS, but I don't know whether it is a good solution, it should be a easier > way to do that. > > Does anybody know how to do that? > > Thanks a lot, > Kevin > -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/google-visualization-api. For more options, visit https://groups.google.com/d/optout.
