Constructing an Equation with X, Y, and Z for Desired Result

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The discussion revolves around constructing an equation involving three variables, X, Y, and Z, to determine a desired Result measured in meters. It is noted that low and high values of X significantly affect the Result, creating a bell-shaped curve, while increases in Y and Z generally lead to higher Results, with exceptions at certain values. Participants suggest developing a model that relates these variables to the Result, potentially using a least squares fit for data analysis. The importance of clarifying the intended function and previous work on the problem is emphasized to receive targeted assistance. Overall, the conversation highlights the need for a structured approach to modeling the relationship between the variables and the Result.
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Hi all,

I have a scenario with three variables, X,Y,Z and Result This is what I know about them:

X could go be from 1 – 100 say meters
Y could be 0 – 31 say ranking
Z could be 1- 100 say meters
Result is in meters (1-100)

For values of X between say 1-20 meters, and 80-100 meters it impacts the result very much i.e low values of Result i.e. like a bell shaped curve.
If Y increases then the Result increases for the most part of course there could be some exceptions.
IF Z increases then the Result increases again with an exception that if Z becomes like 50 meters then the probability of achieving that high Result (meters) is very low.

How do I put together an equation that consists of X, Y, Z to achieve the Result. Should I assume a correlation coefficient and then try to fit an equation. I have no clue about this.
Any help is greatly appreciated.

Thanks.
 
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Mani,

I'm not sure what you're trying to do but since this is a physics forum I imagine you're collecting data on some kind of physics experiment. You should probably have some kind of a model that relates "result" to the variables x, y and z. That model would have various parameters and you would, in essence, be trying to get a "best fit" to the data by adjusting those parameters.

One way to accomplish that would be a least squares fit.
 
Given three variables, you can put them together to get whatever you want!

WHAT is you function supposed to give?
 
as one great dead physicist has said, "give me one parameter, I can fit an elephant, two, I can make him grey and three, I can make his ears viggle"...Mani, you need to show us what you want to do and how you have worked on the problem so far. Then we can give guidance and help.
 
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