![]() Uses an equation to calculate the least squares fit through points, for example, y = ax^6 + bx^5 + cx^4 + dx^3 + ex^2 + fx + g. The number of points equals the total number of points in the series less the number specified for the period. ![]() Uses a sequence of averages computed from parts of the data series. Uses the equation y = c ln x + b to calculate the least squares fit through points. Uses the linear equation y = mx + b to calculate the least squares fit through points. Uses an equation to calculate the least squares fit through points, for example, y=ab^x. Dim trnln As Trendlineįor Each trnln In ActiveChart.FullSeriesCollection(1).Trendlines()Īdd ( Type, Order, Period, Forward, Backward, Intercept, DisplayEquation, DisplayRSquared, Name) ActiveWorkbook.Charts("Chart1").SeriesCollection(1).Trendlines.Add Here is an example of processing the Trendlines items in a collection. ![]() Trendlines class variables can be set using the Series.Trendlines procedure. Set trns = ActiveChart.FullSeriesCollection(1).Trendlines() To use a Trendlines class variable it first needs to be instantiated, for example Dim trns as Trendlines A collection of all the Trendline objects for the specified series.
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