Bit of a strange question...I'm trying to put together a multiple regression model. I have daily temperature as one of my control variables. I really want to control for temperature, but interestingly, removing it seems to very slightly increase my adjusted-R squared (from 0.23 to 0.24 or similar).
I know theoretically, I should just remove it right, as it adds nothing to my model? But given that the increase is so small and I quite like controlling for it in my model, would it be totally wrong to keep it in? If I take it out, am I still "controlling" for temperature in my model?