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GET DATA AT TIME(datavar,time) GET the value of a DATA variable at a specific TIME |
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Returns the value of the data variable at the time specified, or :NA: if there is no data at that time of the variable passed as an argument is not a Data variable.
If you pass :NA: as the argument the function will return the first Data value available and only return :NA: if there are no values or the variable passed as an argument is not a data variable.
Note that GET DATA AT TIME is slow compared to other functions on data. For example GET DATA AT TIME(datavar,Time+1) is the same as defining an additional data variable
tshift datavar :RAW: := TIME SHIFT(datavar,1)
and then using that tshift datavar. Defining the extra variable will give better performance.
Units: GET DATA AT TIME(units,time) --> units
Example
sales at time 20 = GET DATA AT TIME(sales data,20)
Availability: Not PLE or PLE Plus.
See also: TIME SHIFT, Data Equations, :NA:
Sample model: GET DATA AT TIME.mdl in FunctionExamples
