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array delay II
Wed, 25/03/2009 - 14:01 — federicotriana
Hello,
I have a similar problem to the one expose by Lora on Mon, 13/03/2006 - 16:15,
I want to apply the "delay" function to an array variable (A), but unlike Lora I want to delay variable A by a numer of time steps equal to the value of a second variable (B), so the "last" function is not suitable in for me.
I tried to apply the following equation: C = delay([A],B)
However, this produces the following: Testing Equation field produced the following error: Your explicit intermediate result, [array], has brackets round it that would indicate an array of single values. However it actually stands for an array of arrays of single values so should appear as follows: [[array]].
Any suggestions?
triana
Forums:
Hello, The problem is that
Hello,
The problem is that the delay functions are implemented by macros, so unlike basic Simile functions they cannot operate on arrays.
You can get round it like this: instead of having an array variable, use a single-value variable in a multi-instance submodel. Then each call of the 'delay' function only has one value to work on, but all the values get delayed.
Note that 'delay' delays a certain number of steps, while 'const_delay' and 'var_delay' delay for a certain number of time units. See online help for more details.
Hope this helps
--Jasper