tf_prev_end/3—obtain the end time of the previous active interval of a time frame at a given time

The syntax for tf_prev_end/3 is as follows:

tf_prev_end($TIMEFRAME,$TIME,$END)
$END=tf_prev_end($TIMEFRAME,$TIME)

tf_prev_end/3 arguments

Argument	Mode	Type	Description
`$TIMEFRAME`	Input	OBJECT	Specifies the time frame object
`$TIME`	Input	INTEGER	Specifies the time for the active interval
`$END`	Output	INTEGER	End time of previous active interval at the specified time

Use the tf_prev_end/3 to obtain the end time of the previous active interval at $TIME, of time frame $TIMEFRAME in $END.

A 0 value is returned if there is no previous active time frame at the given time.

$END = tf_prev_end($TF,$TM);

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