Name
Ref — Reference past/future values of the array
Synopsis
Ref
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( array,
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period = 0) ;
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Description
This function is inspired by AmiBroker function: www.amibroker.com/guide/afl/ref.html
Difference from AmiBroker: The periods parameter can NOT be time-variant (array). It have to be a constant.
Reference past/future values of the array