Array Administration :-)

robertogozzi wrote:

PeterSt wrote: Not that you asked for it, but notice that the first element of an array is [0] (not [1]).

 

I actually almost always start from element 1 (I count elements myself, I only occasionally use LASTSET). I prefer using element 0 to store say, the date I created it, or last modified it, or any other info I may need, sometimes assembling numbers to combine conditions, such as:

– first digit (1=only for LONG trades, 2=only for SHORT trades, 9=all trades allowed, not 0 because it would be dropped, being the first digit)
– second to seventh digit for the last time I modified/added any element
– and more, provided it does not exceed the supported length (which I don’t know, maybe 12+ digits)
– then 5 digits for the number of elements

so it may contain  9 09300 00212 (which is for ALL trades, LAST modified at 9:30am, containing 212 elements, combined is 909300000212).

Nice !
So this is all clear. But, I wonder what you store in such an array I am still a bit seeking for use-cases of the array. One small example may be telling without giving away your trader’s secrets ? – and shows easier than words ?

I see the administrative application of your [0], but what is the administration about ?
🙂