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tf_duration/3—calculate the duration of all active intervals of a time  frame from a specified start time to the current  time

The syntax for tf_duration/3 is as follows:

tf_duration($TIMEFRAME,$START,$DURATION)
$DURATION=tf_duration($TIMEFRAME,$START)

tf_duration/3 arguments 

Argument

Mode

Type

Description

$TIMEFRAME

Input

OBJECT

Specifies the time frame object

$START

Input

INTEGER

Specifies the start of the period during which active interval duration is to be calculated

$DURATION

Output

INTEGER

Total active interval duration from the time specified in $START until the current time

Use the tf_duration/3 to calculate the total duration in $DURATION of all active intervals of time frame $TIMEFRAME over the period starting at $START and ending at the current time.

tf_duration/3 example

$DURATION = tf_duration($TF,$TM0);

 

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