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I have two variables Distance and Slope. These go into a model resulting in a cost variable. I like to figure out the influence of the variables Distance and Slope on the Cost variable. I have several hundred test numbers for the variables. What programs or steps could I use to see the impact of the two variables on the cost? In the end I would like to know for example Distance influences the Cost variable too 70 %. Slope influence Cost too 30 %.

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This sounds like you want a multiple regression model. However the topic is much more than can be covered in a forum like this. To do a proper regression model (and be sure that it is the correct model) really requires at least 2 courses in statistics (more recommended).

So, you should either enroll in some statistics courses (or find the equivalent self-study) or consult with a local statistician who can make sure that you are doing the right thing and help you understand the results.

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  • $\begingroup$ Thanks Greg for your answer. Now I know at least that it is more complicated than I thought. I will talk to a statistician at my company. $\endgroup$
    – ustroetz
    Commented Mar 14, 2013 at 20:41

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