Hi all, I wanto to run a plot about the levels of a variable parting on an ols regression. The regression in done on the rate of return of the variable.
Imagine R_{t}=a+b*R_{t-1} So If P, the "estimated" price would be P_{t}=P_{t-1}*R_{t} Imagine that I obtain lm fitted values and the original R_{t}, R_{t-1} are [1000,1] dimmension... How it is posible to obtain also 1000,1 fitted values? They should be 999,1, no? If I want to use the fitted values to multiply and obtain estimated prices....P_{t}=P_{t-1}*R_{t} how should I proceed? Many thanks in advance. I try it but I was surprised about the fitted values dimmensions¡¡¡ [[alternative HTML version deleted]]
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