On Sun, 1 Mar 2009, Gregory Propf wrote:
How does one write formatted, say "C style", output to a text file. I
want something like "y=mx+b" for my linear regressions but with m and b
derived from the fit objects. Also, how does one go about extracting
just the slope or intercept from such an object. - Greg
Following the __posting guide__ should have gotten you through this. viz.
??format ## leads to sprintf
?lm ## See Also coef
?coef ## "Extract Model Coefficients"
??file ## leads to sink
?sink ## "Send R Output to a File"
e.g.
coefs <- coef( lm(rnorm(10)~I(1:10)) ) ## for example
sprintf( "y = %5.2fx%+5.2f", coefs[2], coefs[1] )
[1] "y = -0.08x+0.50"
sink("myFile.txt")
sprintf( "y = %5.2fx%+5.2f", coefs[2], coefs[1] )
sink()
Chuck
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Charles C. Berry (858) 534-2098
Dept of Family/Preventive Medicine
E mailto:cbe...@tajo.ucsd.edu UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/ La Jolla, San Diego 92093-0901
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