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Calculating an Equation in KNIME

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Hi,

I have a data set which looks like this 

id    prob

1      0.55     ----> (p1)

2      0.36     ----> (p2)

3     0.045   -----> (p3)

4     0.023   -----> (p4)

 

I need to calculate the below equation:

 var  =  1 - p1 - p2- p3 - p4

Looks easy but I'm not able to figure out a simple workflow to do it. Please let me know how could I solve this ?

Thanks !

 

Regards,

Mohammed Ayub


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