[R] Creating nice looking lists: how?

[Katharine Mullen]

The source code for print.summary.lm and summary.lm is in the file
/src/library/stats/R/lm.R of the R source code, which you can download
from CRAN if you don't have it already.  The file lm.R is also at
https://svn.r-project.org/R/trunk/src/library/stats/R/lm.R

On Fri, 28 Sep 2007, Sergey Goriatchev wrote:

> Hello,
>
> For my functions I want to create output similar in appearance to that
> of what you get when you print a summary of lm model:
>
> Residuals:
>       Min        1Q         Median        3Q           Max
> -0.209209 -0.043133  0.001793  0.044105  0.234750
>
> Coefficients:
>                  Estimate  Std. Error  t value    Pr(>|t|)
> (Intercept)  0.981762   0.004089 240.103  < 2e-16 ***
> Factor 1    -0.009581   0.006381  -1.501 0.134296
> Factor 2    -0.008993   0.009182  -0.979 0.328163
> Factor 3     0.029960   0.009547   3.138 0.001866 **
> Factor 4    -0.026575   0.007370  -3.606 0.000363 ***
> Factor 5    -0.004847   0.006382  -0.760 0.448138
> Factor 6     0.005099   0.006483   0.786 0.432202
> ---
> Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
>
> I want:
> 1) no $ before the list component names
> 2) component names that take values from outside variables
> (ex.: number <- 10
>        There are 'number' factors in the model:)
>
> There is not much information on how to create nice output in terms of
> lists, so I was looking for core to write the summary(lm) output, but
> could not find much. Obviously, I can type summary.lm, but it does not
> show how to create the name "Coefficients:"
>
> Could someone give me pointers on how to create nice lists?
>
> Thanks
> Sergey
>
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