[R] Re gression line w/ residuals - tuning the plot

[Ulrike Groemping]

Hello Primoz,

with traditional graphics, you may want to use par (?par), options like mar,
mai, oma etc. may be interesting for you. And for the relation between
y-axis and x-axis, the option asp to function plot (?plot.default) will
help.

Regards, Ulrike



Primoz PETERLIN-2 wrote:
> 
> Hello everybody,
> 
> I am sure this is a beginners' problem which is being asked
> recurrently every few months, but nevertheless I wasn't able to find
> the answer searching through the r-help list.
> 
> So here is my problem: I would like to plot a set of points (y vs. x),
> a (linear) regression line through them, and on the second graph
> underneath the first one I would want to plot residuals vs. x. I came
> up with two solutions, unfortunately neither of them is fully
> satisfactory.
> 
> First I tried with what I later learned is called traditional graphics
> (file norris.R). Here, the white space margins around the plots are
> too wide, meaning that the data in the plot are crammed. Probably I
> would be quite happy if I could somehow define a rectangular plotting
> area with its height being ~150% of its width, but I cannot prevent R
> from offering me a square plotting area.
> 
> Next I tried a lattice package (file norris.lattice.R). Here, the
> margins are smaller, but the lower plot does not fit exactly under the
> upper one (the x-axes should match).
> 
> Most likely I am not using the correct terminology (if I would have
> known it, I could have looked in the help pages myself, thank you :),
> but I hope that the attached files make more sense of what I am trying
> to do.
> 
> Thanks in advance.
> 
> All the best,
> Primoz
> 
> -- 
> Primož Peterlin,   Inštitut za biofiziko, Med. fakulteta, Univerza v
> Ljubljani
> Lipičeva 2, SI-1000 Ljubljana, Slovenija.       
> primoz.peterlin at mf.uni-lj.si
> Tel +386-1-5437612, fax +386-1-4315127, 
> http://biofiz.mf.uni-lj.si/~peterlin/
> F8021D69 OpenPGP fingerprint: CB 6F F1 EE D9 67 E0 2F  0B 59 AF 0D 79 56
> 19 0F
> 
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> 

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