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GET DATA FIRST TIME(datavar) GET the FIRST TIME data exists

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Returns the time at which the first data point occurs for the data variable datavar.  If there is no data for datavar or it is not actually a data variable then :NA: is returned.

NOTE  GET DATA FIRST TIME is relatively slow and is best used inside of INITIAL equations.

Units: GET DATA FIRST TIME(units) --> time units


first sales data time = INITIAL(GET DATA FIRST TIME(sales data))

Availability: Not PLE or PLE Plus.

See also: Data Equations, :NA:

Sample model: GET DATA stats.mdl in FunctionExamples