Changes

Modifies the starting point location of a trendline with the specified ID number; returns a value of 0 if the starting point location was successfully modified, and a value of -2 if the specified trendline ID number is invalid.

TL_SetBegin returns a value of 0 if the starting point location was successfully modified, and a value of -2 if the specified trendline ID number is invalid.  Of the two end points of a trendline, the point with the earlier date and time is always considered to be the starting point; if . If the trendline is vertical, the point with the lower price value is considered to be the starting point.

==== Usage ====

==== Parameters ==== [[:'''TL_ID]] ''' - a numerical expression specifying the trendline ID number .

[[:'''sDate]] ''' - a numerical expression specifying the new starting point date; the date is indicated in the ''YYYMMdd '' format, where YYY is the number of years since 1900, MM is the month, and dd is the day of the month

[[:'''sTime]] ''' - a numerical expression specifying the new starting point time; the time is indicated in the 24-hour ''HHmm '' format, where 1300 = 1:00 PM

[[:'''sPriceValue]] ''' - a numerical expression specifying the new starting point price value (vertical position, corresponding to a value on the price scale of a chart) .

==== Notes ==== * A trendline-specific ID number is returned by [[TL_New]] when the trendline is created. * Use [[TL_SetBegin_s]] to set the new begin point for a trendline with seconds precision.* Use [[TL_SetEnd]] and [[TL_SetEnd_s]] to set the new end point for a trendline with respectively minutes or seconds precision.

==== Example ====Move the starting point of the trendline with an ID number of 3 to 10:00 AM on January 17th at a price value of 1365:  <syntaxhighlight>Value1=TL_SetBegin(3,1080117,1000,1365);</syntaxhighlight>