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2009 Sep 13
2
How can I get "predict.lm" results with manual calculations ? (a floating point problem)
Hello dear r-help group
I am turning for you for help with FAQ number 7.31: "Why doesn't R think
these numbers are equal?"
http://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-doesn_0027t-R-think-these-numbers-are-equal_003f
*My story* is this:
I wish to run many lm predictions and need to have them run fast.
Using predict.lm is relatively slow, so I tried having it run faster by