If my model is perfect then that means $SSE = 0$,
which means $SST = SSR$ as $SST = SSR + SSE$,
which means $R^2 = 1 - 1 = 0$, as $R^2 = 1 - SSR/SST$,
but $R^2$ should have given me $1$ and not $0$,
I don't know what I am not understanding.
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Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. – Community Oct 12 '23 at 11:00
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1$R^2=SSR/SST=1-SSE/SST$ – Anton Vrdoljak Oct 12 '23 at 11:04