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Help in normalizing numbers

I need to normalize a set of experiment results.
In every experiment I have one number befor the operation and one number after the operation - two values for every experiment.

The problem is that I have numbers that change from 1.4 to 3.2 and on another experimen I have numbers that change from 50 to 100..

How can I normalize these numbers so I could calculate the canges that my operations cause? Is dividing the number after in the number before enough?


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8215 thumbs up

Love is the battery of life....

Hi,


E-mail the data to me, be a bit more specific as per your requirements, and I'll work it out for you. 
Best regards,

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Hi, If you're interested in the ratio of changes, then the technique you suggested is perfectly fine. Measurement errors, If needed, may be calculated for your ratio technique as followed: Define - X as initial value and Y as final value, thus Z=Y/X is the value you're interested of. According to the least squares technique, measurement error range (Delta(Z))=Sqrt((delta(Y)/X)^2+(Y/delta(X)^2)^2), where delta(Y) and delta(X) are errors within X,Y. If you need some clarification, post again. Good luck.


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