Trend line on scatter chart

[Eric]

Is it possible to do a trend line on a scatter chart?

[Eric]

Specifically, I'm looking for a logartithmic trend line.

[Vladimir Milev]

Hello Eric,

RadChart only supports linear trend-lines. We apologize for the inconvenience.

Kind regards,
Vladimir Milev
the Telerik team

[RoxanaC]

Hello Vladimir!
You are saying that "RadChart only supports linear trend-lines". How would you use this feature in a scatter chart for example, where the data source is a collection of points as follows:

public class ScatterDataPoint : IComparable<ScatterDataPoint> {
        public ScatterDataPoint( double x, double y ) {
            this.X = x;
            this.Y = y;
        }

        public double X {get;  set;}

        public double Y {get;  set;}
    }

Right now I have my own way of calculation the ax+b trend line and afterwards I create a LineSeriesMapping in the same chart using this ecuation, but I am curious if there is a easy way available in Telerik.

The most important thing that concerns me is if there is a way to introduce an approximation curve for the points existing in a graph, like a Bezier curve. Right now using a SplineSeriesDefinition for the existing points doesn't help. Is Telerik considering introducing this kind of trend curves in charts in the future?

[Vladimir Milev]

Hi Eric,

Yes indeed you can use a trendline in the form ax+b. Check this help article for more details. As for curves, we currently don't support such annotation. We apologize for the inconvenience.

All the best,
Vladimir Milev
the Telerik team