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# RunQC ( quantity ; qc )

• Formulae:

Let ([

//determine the number for QC
a = qty  * .01  ;
b = Int ( a ) ;
c = a - b ;
d = Case ( c > 0 ; 1 ) + b
];

//use 0 to calculate the number of items to be selected or provide an actual value 1,2,3,4
Choose ( Case ( qc = 0 ; d ; qc )   ;

"error" ;

//one
//randomly choose front or back of stack then selects 1 of 5 items.
If ( Random ≥ .5 ; 0 ; qty - 5 )  +  Round(Random * 5 + .5; 0) ;

//two
//selects two random items from the front and back of the stack
Round(Random * 5 + .5; 0)  & ¶ &
qty - 5  +  Round(Random * 5 + .5; 0) ;

//three
//selects three random items  one from the front and two from back of the stack
//there is a higher potential for failures toward end of runs.
Round(Random * 5 + .5; 0)  & ¶ &
(qty - 10) +  Round(Random * 5 + .5; 0) & ¶ &
(qty - 5 )  + Round(Random * 5 + .5; 0) ;

//four
//selects four random items two from the front and two from back of the stack
Round(Random * 5 + .5; 0)  & ¶ &
5 + Round(Random * 5 + .5; 0)  & ¶ &
(qty - 10) +  Round(Random * 5 + .5; 0) & ¶ &
(qty - 5 )  + Round(Random * 5 + .5; 0)

)

)

From a total quantity of products determine the number of items to pull for quality control based the random number 5 from the front or back of the stack.

Returns a return separated list of numbers. When the value of items to QC is 4 items it will select 2 from the front and two from the back of the production run.

If the products were stacked in a bin or tray in order produced the person picking items for QC testing just needs count and pull the numbers returned from the CF.

Edited by Ocean West

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