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I have set up an LCI where each input is multiplied by a parameter (let's say input_1 x a, input_2 x b, and input_3 x c). I want to set each parameter to 1, then 10% less than 1, and 10% more than 1.

So:

a=1, b=1, c=1   then

a=0.9, b=c=1   then

a=1.1, b=c=1

I do this in both python and the openLCA project tab. I have two problems now:

1) When I compare python and openLCA LCIA results, the values are different. There is no common factor in the differences and the differences are quite large:

   -> settin a=0.9, b=c=1 from openLCA     does not equal    settin a=0.9, b=c=1 from python

2) I was expecting the changes to be linear

    -> the difference between a=0.9 and a=1.0      does not equal    the difference between a=1.0 and a=1.1.

Can you assist?
ago in openLCA by (300 points)

1 Answer

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ago by (148k points)
Sure, interesting. How do you "do this in python"? Either share more details here or book modeler support hours, thank you!
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