R² for various time spans

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MrWayneCares
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Joined: Wed Dec 17, 2014 7:00 pm

R² for various time spans

Postby MrWayneCares » Wed Dec 17, 2014 7:04 pm

Hey all,

I want to conduct linear regression analyses on my data (they are on a quarterly basis). However, I'd like to look how my R² varies, if I use different time spans, i. e. Q1 2000 until Q4 2003 or Q1 2000 until Q2 2006 or whatever.

Is there any possibility to do this with SPSS? And if so, is there any possibility to somehow automatise this procedure so that I won't have to run new regression analyses for every time span I want to look at?

Kind regards

MrWayneCares

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