Neophytefloor() is a function that rounds down whatever is in the parenthesis to the nearest integer. If myvalue is the name of your standard datapoint, then floor(myvalue) would round the standard datapoint down to the nearest integer.
The mod operator (%) returns the remainder after division. So if you take 20221231 and divide by 100, you get 202212 with a remainder of 31. The mod (%) just grabs the 31.
Each complex datapoint is just another column in the raw data table.
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