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Many thanks again for all help. I then also learnt that to get the "Adjusted R-squared", I just issued command "summary(lm(y~x))$adj.r.squared".
Dear all, I know there are 'coef', 'predict', 'fit' to get the corresponding outputs. Is that possible to get the value of R-squared from a 'lm' output? Many thanks.
Dear all, I would like to fit a linear regression with replication (on each year, observation is replicated, e.g 4 times). The independent variable ranges for instance 1-5 year, so I expect to have a linear fit of...
Dear all, I want to write regression equation on R graph by taking the actual values of the regression coefficients. I have problem when writing X^2 (printed as X superscripts 2). I know there's a function "expression" but...
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