Determine whether tscollection object
is empty
isempty(tsc)
isempty(tsc) returns
a logical value for tscollection object tsc,
as follows:
1 — When tsc contains
neither timeseries members nor a time vector
0 — When tsc contains
either timeseries members or a time vector
length (tscollection) | size (tscollection) | timeseries | tscollection