R help - Mar 2009 - Formatted text output

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



      
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The innards of an object can be revealed with the str function and the  
coef function should have been a link off the lm page (assuming that  
was the sort of "fit" you were creating.)

For output to files see ?cat


On Mar 1, 2009, at 3:15 PM, 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
>
>
>
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

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

>
>
>
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
Charles C. Berry                            (858) 534-2098
                                             Dept of Family/Preventive Medicine
E mailto:cberry at tajo.ucsd.edu	            UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/  La Jolla, San Diego 92093-0901