Removes a trendline with the specified ID number from a chart.
TL_Delete returns a value of 0 if the trendline was successfully removed, and a value of -2 if the specified trendline ID number is invalid.
- TL_ID - a numerical expression specifying the trendline ID number.
- A trendline-specific ID number is returned by TL_New when the trendline is created.
Remove the trendline with an ID number of 3:
Value1 = TL_Delete(3);