1. Multi variable Regression

Dear Regression Experts,

I am new in this field, I have set of data of about 1 lac entries having a total of 10 variables of which 9 are input variables and one output variables. some of the input variables are highly dependent to each other.

I am already performed simple linear regression ( y= ax1+bx2+cx3+dx4+ex5+fx6+gx7+hx8+ix9) where a to i are coefficient of variables using MATLAB but somehow the percentage of error is quite high.

Can anyone please guide another method to overcome from this situation

Best Regards

2. Re: Multi variable Regression

Well, what is your study all about, actually? What is the topic,
what are the research questions, what are these variables x1 to
x10, how large is your sample size, and what do you
actually mean by ''somehow the percentage of error is quite high''
- which error, and what do you mean by "quite high"?

With kind regards

K.

3. The Following User Says Thank You to Karabiner For This Useful Post:

PeterFlom (12-11-2015)

4. Re: Multi variable Regression

Also what do you mean by dependent to each other? Correlated, mediated, ??

5. Re: Multi variable Regression

Dear Karabiner,

The problem is related to simulation, In the simulation I am varying the input variables and get the results in terms of energy consumption .
For that scenario I have a matrix of (100000 x 10) and now I want to develop the relation between them using multivariate regression.

Some of the variables are having non linear dependency to the output while some don't have.
Now the error part it is actually the difference between (the predicted output - the real output / real output ).

since in matlab there is way in which you enter the correct expression between the input and output variable and get the coefficients of the variables.

I just want to know how to develop the relation between the input and output variables is there any well defined patterns to get the relation between the independent and dependent variable.

Best Regards
Wali

6. Re: Multi variable Regression

hi all,

Best regards
wali

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