isMonthStart
Syntax
isMonthStart(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 month.
Examples
$ isMonthStart(2012.05.01);
true
$ isMonthStart([2012.05.01,2012.05.02]);
[true,false]
Related function: isMonthEnd