counting subnodes with a specific label

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question

Maryam H2 asked Feb 20 2024 at 11:41 PM Maryam H2 commented Feb 21 2024 at 3:41 PM

counting subnodes with a specific label

How can I determine the number of subnodes on a processor that have a specific label? For instance, assume some subnodes are labeled "A" while others are labeled "B". How I can refer to the quantity of each in the pull from list?

Software Version:

FlexSim 24.0.1

list pull subnodes subnode.length

1708472490784.png (33.2 KiB)

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Answer 1 · 2024-02-21T00:03:42Z

Jason Lightfoot answered Feb 21 2024 at 12:03 AM Maryam H2 commented Feb 21 2024 at 3:41 PM

You'd usually test the value of the label not that it exists:

Table.query("SELECT count($2) FROM $1 WHERE $2.Type='A'",token.csb,$iter(1))[1][1]

Label names should reflect the name of a category not the value that needs to be written on it.

· 4

Maryam H2 commented · Feb 21 2024 at 1:40 AM

@Jason Lightfoot that code does not work in the "Request/Require Number" section of a Pull from List activity (please see the picture above in previous post).

I know this one works: token.csb.subnodes.length (token.csb is the processor object) but I want to refer to specific item on the processor and the length of that item so referring to length of subnodes with specific label such color or name on them. How I can do that?

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Felix Möhlmann Maryam H2 commented · Feb 21 2024 at 7:26 AM

Jason's expression directly returns the number of subnodes whose "Type" label has a value of "A" without the need for a list. So you could put it into the Value field of an "Assign Labels" activity for example.

And just so there is no misunderstanding: "length" is the number of entries in an array. If you want to query the size of objects you'd use "object.size.x/y/z".

                     
                      Table.query("SELECT SUM($2.size.x) FROM $1 WHERE $2.Type='A'",token.csb,$iter(1))[1][1]

This would return the total size along the x-axis of all items with type A on the processor.

1 ·

Jason Lightfoot ♦♦ Maryam H2 commented · Feb 21 2024 at 7:24 AM

What makes you think it doesn't work? Here's a working example.

PullQtyMatchingItemLabels.fsm

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pullqtymatchingitemlabels.fsm (36.4 KiB)

Maryam H2 Jason Lightfoot ♦♦ commented · Feb 21 2024 at 3:41 PM

@Jason Lightfoot @Felix Möhlmann you're correct, I made a mistake in writing the query. Thanks!

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