Maximum Group Size for Regression

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dieterE28
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Joined: Fri Mar 20, 2009 3:18 am

Maximum Group Size for Regression

Postby dieterE28 » Fri Mar 20, 2009 3:26 am

I want to run a simple regression using a group of series (ca. 1000).

y c GROUP

This results in the error "752 is not a valid index for vector-series-coefficient C". Is there a maximum size for regressors? Or did I make another mistake.

EViews Gareth
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Re: Maximum Group Size for Regression

Postby EViews Gareth » Fri Mar 20, 2009 8:07 am

740 is the maximum number of coefficients for an Equation.

Systems will let you have more coefficients, so you could estimate your equation in a System, which should give you the same results as doing it in an equation would.

Be sure to use the Proc->Define System dialog to make specifying the equation simple with your group object, and use a coefficient vector other than C (C is limited to 740 values, but user-defined coefficient vectors can go larger).
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dieterE28
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Joined: Fri Mar 20, 2009 3:18 am

Re: Maximum Group Size for Regression

Postby dieterE28 » Fri Mar 20, 2009 8:53 am

Thanks. However, I have the same Problem now with the system. I cannot put all series in it. If I do it with copy and paste, I get the same Error message (752 is not...).

EViews Gareth
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Re: Maximum Group Size for Regression

Postby EViews Gareth » Fri Mar 20, 2009 9:00 am

Did you change the coefficient vector to something other than C?
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nmark@nd.edu
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Re: Maximum Group Size for Regression

Postby nmark@nd.edu » Tue Feb 27, 2024 1:29 pm

Can you give a little example about how to change the coefficient vector to something other than c?
I am having the same problem in a system. I have more than 740 coefficients, but replacing c(1)-c(740) with something like g(1)-g(740) doesn't work.

EViews Gareth
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Re: Maximum Group Size for Regression

Postby EViews Gareth » Tue Feb 27, 2024 1:56 pm

Create a new coefficient vector (not a vector, but a coef) called G, then use g instead of c
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