[R] Lines instead of points in a scatterplot

Fri Sep 12 11:42:28 CEST 2014

Thank you, Petr.

I understand now. I thought the first column Peter was referring to in his email was 

that appears when I write > aggr. In facti, it is:

[65,67) 
67  
[68,70) 
[70,72)
...

There is no need to change this column if one uses plot.default

Angel

-----Mensaje original-----
De: PIKAL Petr [mailto:petr.pikal at precheza.cz]
Enviado el: vie 12/09/2014 11:40
Para: Vivek Das; Angel Rodriguez
CC: R help
Asunto: RE: [R] Lines instead of points in a scatterplot

Hi

look at str(aggr)

I bet you will find that your first column is factor and lines you see are from making a boxplot with your plot command.

You can change it by various ways but I would prefer to change factor to numeric, which requires some regular expression.
Here is one but I believe that other experts can come with easier one.

dat <- gsub("^.*([[:digit:]]{2}),([[:digit:]]*).*$", "\\1", aggr$child65$decedad)

Then plot
plot(dat, aggr[,2])

shall produce points.

Another option can be

plot(as.numeric(aggr[,1], aggr[,2], axes=FALSE)

and then you need to ad axes labels, see ?axis

Regards
Petr

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Vivek Das
> Sent: Friday, September 12, 2014 10:50 AM
> To: Angel Rodriguez
> Cc: R help
> Subject: Re: [R] Lines instead of points in a scatterplot
>
> HI,
>
> Try to change with
>
> plot(aggr, type="l")
>
> see what happens?
>
> This should work
>
> ----------------------------------------------------------
>
> Vivek Das
>
>
> On Fri, Sep 12, 2014 at 10:32 AM, Angel Rodriguez <
> angel.rodriguez at matiainstituto.net> wrote:
>
> >
> >
> > Dear subscribers,
> >
> > I have the following dataframe:
> >
> > > aggr
> >    child65$decedad       logit
> > 1          [65,67)  0.00000000
> > 10              67  0.00000000
> > 2          [68,70) -0.06669137
> > 3          [70,72) -0.71294981
> > 4          [72,74) -0.59783700
> > 5          [74,77) -1.08334482
> > 6          [77,79) -1.88273125
> > 7          [79,81) -1.21924028
> > 8          [81,84) -1.94591015
> > 9          [84,98] -1.65822808
> >
> > When I write:
> >
> > > plot(aggr)
> >
> > I get the correct scatterplot, but points are substituted by
> > horizontal lines. I prefer points.
> >
> > If I write:
> >
> > > plot(aggr, pch=1)
> >
> > nothing changes
> >
> > > plot(aggr[,1],aggr[,2])
> >
> > nothing changes
> >
> > > plot(aggr, type="p")
> >
> > nothing changes
> >
> >
> > Any idea?
> >
> > Best regards,
> >
> > Angel Rodríguez-Laso
> >
> >         [[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.
> >
> >
>
>       [[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.

________________________________
Tento e-mail a jakékoliv k nemu pripojené dokumenty jsou duverné a jsou urceny pouze jeho adresátum.
Jestlize jste obdrzel(a) tento e-mail omylem, informujte laskave neprodlene jeho odesílatele. Obsah tohoto emailu i s prílohami a jeho kopie vymazte ze svého systému.
Nejste-li zamýsleným adresátem tohoto emailu, nejste oprávneni tento email jakkoliv uzívat, rozsirovat, kopírovat ci zverejnovat.
Odesílatel e-mailu neodpovídá za eventuální skodu zpusobenou modifikacemi ci zpozdením prenosu e-mailu.

V prípade, ze je tento e-mail soucástí obchodního jednání:
- vyhrazuje si odesílatel právo ukoncit kdykoliv jednání o uzavrení smlouvy, a to z jakéhokoliv duvodu i bez uvedení duvodu.
- a obsahuje-li nabídku, je adresát oprávnen nabídku bezodkladne prijmout; Odesílatel tohoto e-mailu (nabídky) vylucuje prijetí nabídky ze strany príjemce s dodatkem ci odchylkou.
- trvá odesílatel na tom, ze príslusná smlouva je uzavrena teprve výslovným dosazením shody na vsech jejích nálezitostech.
- odesílatel tohoto emailu informuje, ze není oprávnen uzavírat za spolecnost zádné smlouvy s výjimkou prípadu, kdy k tomu byl písemne zmocnen nebo písemne poveren a takové poverení nebo plná moc byly adresátovi tohoto emailu prípadne osobe, kterou adresát zastupuje, predlozeny nebo jejich existence je adresátovi ci osobe jím zastoupené známá.

This e-mail and any documents attached to it may be confidential and are intended only for its intended recipients.
If you received this e-mail by mistake, please immediately inform its sender. Delete the contents of this e-mail with all attachments and its copies from your system.
If you are not the intended recipient of this e-mail, you are not authorized to use, disseminate, copy or disclose this e-mail in any manner.
The sender of this e-mail shall not be liable for any possible damage caused by modifications of the e-mail or by delay with transfer of the email.

In case that this e-mail forms part of business dealings:
- the sender reserves the right to end negotiations about entering into a contract in any time, for any reason, and without stating any reasoning.
- if the e-mail contains an offer, the recipient is entitled to immediately accept such offer; The sender of this e-mail (offer) excludes any acceptance of the offer on the part of the recipient containing any amendment or variation.
- the sender insists on that the respective contract is concluded only upon an express mutual agreement on all its aspects.
- the sender of this e-mail informs that he/she is not authorized to enter into any contracts on behalf of the company except for cases in which he/she is expressly authorized to do so in writing, and such authorization or power of attorney is submitted to the recipient or the person represented by the recipient, or the existence of such authorization is known to the recipient of the person represented by the recipient.

	[[alternative HTML version deleted]]