isYearStart
Syntax
isYearStart(X)
Arguments
X is a scalar/vector of type DATE, DATEHOUR, DATETIME, TIMESTAMP or NANOTIMESTAMP.
Details
Determine if each element in X is the first day of a year.
Examples
isYearStart(2012.01.01);
// output
true
isYearStart([2012.01.01,2012.02.01]);
// output
[true,false]
Related function: isYearEnd