# [R] scaling loess curves

Bogdan Tanasa tanasa at gmail.com
Fri Sep 11 10:03:07 CEST 2015

```Dear Petr,

thank you very much, it helped. On a side note, shall I have 2 plots and 2
loess curves (as below), is there any way in ggplot2 to overlay these 2
graphs for "a" and "b" ? much thanks again !

qplot(data=a,distance,intensity)+geom_smooth(method = "loess", size = 1,
span=0.01)+xlab("distance")+ylab("intensity")

qplot(data=b,distance,intensity)+geom_smooth(method = "loess", size = 1,
span=0.01)+xlab("distance")+ylab("intensity")
-- bogdan

On Fri, Sep 11, 2015 at 3:06 AM, PIKAL Petr <petr.pikal at precheza.cz> wrote:

> Hi
>
>
>
> based on your data maybe using logarithmic y scale shall give you desired
> result.
>
>
>
>
> http://stackoverflow.com/questions/4699493/transform-only-one-axis-to-log10-scale-with-ggplot2
>
>
>
> Or you can recalculate intensity to scale 100-0 (or any other suitable
> scale).
>
>
>
> ?rescale
>
>
>
> Cheers
>
> Petr
>
>
>
> *From:* Bogdan Tanasa [mailto:tanasa at gmail.com]
> *Sent:* Friday, September 11, 2015 8:14 AM
> *To:* PIKAL Petr; r-help
> *Subject:* Re: [R] scaling loess curves
>
>
>
> Hi Petr,
>
> thank you for your reply regarding the scaling of loess curves. Our
> situation is the following :
>
> we do have 2 experiments, and for each experiment, the set of data is in
> the following format : "nodeA (chr, start, end) - node B (chr, start, end)
> - interaction intensity (between A and B)".
>
> We are trying to SCALE the LOESS curves ( for the graphs "distance between
> node A and node B" vs "intensity") for experiment1 vs experiment2, in order
> to make the experiments directly comparable.
>
> I have attached 2 figures with the LOESS curves for experiment1 and
> experiment2 to my email. Shall you have any suggestions, please let me
> know. Thanks a lot,
>
>
>
> -- bogdan
>
>
>
> On Mon, Sep 7, 2015 at 7:34 AM, PIKAL Petr <petr.pikal at precheza.cz> wrote:
>
> Hi
>
> what about xlim or ylim?
>
> Cheers
> Petr
>
>
>
> > -----Original Message-----
> > From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Bogdan
> > Tanasa
> > Sent: Monday, September 07, 2015 8:00 AM
> > To: r-help
> > Subject: [R] scaling loess curves
> >
> > Dear all,
> >
> > curves.
> > More specifically, we do have 2 sets of 5C data, and the loess plots
> > reflect the relationship between INTENSITY and DISTANCE (please see the
> > R code below).
> >
> > I am looking for a method/formula to scale these 2 LOESS plots and make
> > them directly comparable.
> >
> > many thanks,
> >
> > -- bogdan
> >
> >
> >
> > -------------- the R code ------------------
> >
> >
> >
> > qplot(data=a,distance,intensity)+geom_smooth(method = "loess", size =
> > 1,
> > span=0.01)+xlab("distance")+ylab("intensity")
> >
> >
> >
> > qplot(data=b,distance,intensity)+geom_smooth(method = "loess", size =
> > 1,
> > span=0.01)+xlab("distance")+ylab("intensity")
> >
>
> >       [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>
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[[alternative HTML version deleted]]

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