When does a feeder stop feeding?

[stex2727]

Take the data below where column A feeds column B which then feeds column C

Am I right in believing only 2 data points in Column C will be fed from Column B? or is it the 8 from column A?

Cheers
Steve


Feeders
A => B
B => C

Data

A B C
1 0 0
1 0 0
1 1 0
1 0 0
0 0 0
1 0 0
1 0 0
1 1 1
0 0 0
1 0 0
0 0 0

[Steve Rowe]

Hi,
It ought to be the second option with just the two from col B triggering feeders. It should be easy to test if you build this in a cube and then do check feeders in column C. Make sure you unload and reload the cube to get a true picture.

Cheers

[stex2727]

Thought so, I don't know why I never tested it with check feeders in the past.

Thanks
Steve

[jason68]

I'd be interested in the results of your test.

I'd expect a lot more feeding of C due to 'feeder chains' - where B is fed, C will always be fed even if the value of B is 0, so I would expect there to be 8 fed values in the C column..

Effectively you have built A=>B, A=>C and B=>C

J

[qml]

Not so long ago we discussed this at length (here: http://www.tm1forum.com/viewtopic.php?f=3&t=5459) and the consensus reached was that fed cells keep on feeding regardles of their actual value (0 or non-0).