# Difference between revisions of "TL SetBegin s"

Line 19: | Line 19: | ||

==== Example ==== | ==== Example ==== | ||

− | + | Move the starting point of the trendline with an ID number of 3 to 10:00:00 AM on January 17th at a | |

price value of 1365: | price value of 1365: | ||

− | Value1=TL_SetBegin_s(3,1080117,100000,1365);</syntaxhighlight> | + | <syntaxhighlight>Value1=TL_SetBegin_s(3,1080117,100000,1365);</syntaxhighlight> |

[[Category:Trendline Drawing]] | [[Category:Trendline Drawing]] |

## Revision as of 13:19, 27 January 2012

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.

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 the trendline is vertical, the point with the lower price value is considered to be the starting point.

## Contents

#### Usage

```
TL_SetBegin_s (TL_ID, sDate, sTime_s, sPriceValue)
```

#### 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_s - a numerical expression specifying the new starting point time, including seconds; the time is indicated in the 24-hour HHmmss format, where 130000 = 1:00:00 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_s when the trendline is created.

#### Example

Move the starting point of the trendline with an ID number of 3 to 10:00:00 AM on January 17th at a price value of 1365:

```
Value1=TL_SetBegin_s(3,1080117,100000,1365);
```