ElemIsNull function

The ElemIsNull function determines if an element contains no data.

Syntax

ElemIsNull(ts     TimeSeries, 
           offset integer) 
returns Boolean;

ElemIsNull(ts     TimeSeries, 
           tstamp datetime year to fraction(5)) 
returns Boolean;

ts: The time series to act on.
offset: The offset of the element to examine.
tstamp: The time stamp of the element to examine.

Description

Use either offset or time stamp to locate the element you want to examine.

Returns

Returns TRUE if the element has never been written to or was written to and the data has since been deleted; returns FALSE if the element contains data or is hidden.