This uses item model 10 to create number series items - Combined identification of parallel sub-sequences and progressively evolving coefficients of change.
imTen(items, logic = "one", n = 2, arith = "add")Generate a random mix of items.
The combination of sequences follow two logic ("one" or "two").
The value that the arithmetic operator uses to calculate the next value
The arithmetic operator of your choice ("add","substr","multi","div").
The number series items are a combination of Arithmetic, linear sequence and progressive coefficient. First logic is combining sequences x y x y x y x y = one simple (cannot be controlled), one progressive . Second logic is combining sequences x y x y x y x y = two progressive. The minimum number of items that will be generated is 2. Logic analogous to the Item Model 5, but at least one sub-sequence involves a progressively evolving coefficient. Sub-sequences involve items from Item Families 1, 3, and 7. Example: The coefficient of change between odd elements in the sequence increases by 1. The coefficient of change between even elements increases by -1. (2 8 4 7 7 5 11 2 16 (-2) (22)).
When using the first logic, n corresponds to the change in the progressive pattern. However, the simple pattern is fixed and hence drawn randomly.
#Draws 10 items randomly.
imTen(10,logic="one", n=2,arith="add")
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