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Rodrigo Aluizio

2010-Dec-09 22:22 UTC

[R] RES: Barplot with "Independent" Lines Y axis

Oh sorry. An example say lots more than words. The data below, when
submitted to twoord.plot return the mentioned error. Rain are bars and Salt
lines, the bars appear and the error occurs with the salt data.

Point	Rain	Salt
Fev/03	365.6	13
Mar/03	235	18
Abr/03	115.1	18
Mai/03	47.4	18.75
Jun/03	112	15
Jul/03	156.8	17
Ago/03	66.1	15
Set/03	149.8	14
Out/03	167,1	11.5
Nov/03	269.3	17.5
Dez/03	283.7	
Jan/04	415	1,3
Fev/04	322	8,5
Mar/04	258.7	10.5

-----Mensagem original-----
De: Greg Snow [mailto:Greg.Snow at imail.org] 
Enviada em: quinta-feira, 9 de dezembro de 2010 17:57
Para: Rodrigo Aluizio; 'R Help'
Assunto: RE: [R] Barplot with "Independent" Lines Y axis

Without seeing a reproducible example we cannot be sure, but my guess is
that you are letting twoord.plot set the limits and the function does not
remove missing values, if you specify rylim and or lylim arguments
specifically, then it should not run into the problem you are seeing (I
hope).

If that does not work, then send a small reproducible example (the dput
command is great for the data part) which will help us find the problem.

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111

> -----Original Message-----
> From: Rodrigo Aluizio [mailto:r.aluizio at gmail.com]
> Sent: Thursday, December 09, 2010 12:27 PM
> To: Greg Snow; 'R Help'
> Subject: RES: [R] Barplot with "Independent" Lines Y axis
> 
> Thank you for the function suggestion, works nicely for complete data
> vectors. Just another question. When using the twoord.plot I reached
> another
> issue, it seems that this function can't handle NAs in one of the
> variables
> (the data of one month for another variable is missing). The lines and
> barplot functions just interrupt the plot and continue after the NA but
> twoord.plot gives me an error: Error at plot.window(...) : finite
> values are
> necessary for 'ylim'
> 
> Is there a way to work around this error?
> 
> P.S.: I'm aware of the problems regarding this type of graph, but this
> time
> it's not a choice of mine (unfortunately). Thank you anyway for the
> highlight, maybe it will help me arguing.
> 
> Regards
> 
> Rodrigo.
> 
> -----Mensagem original-----
> De: Greg Snow [mailto:Greg.Snow at imail.org]
> Enviada em: quinta-feira, 9 de dezembro de 2010 15:56
> Para: Rodrigo Aluizio; R Help
> Assunto: RE: [R] Barplot with "Independent" Lines Y axis
> 
> Look at the twoord.plot function in the plotrix package, but be sure to
> read
> the note on the help page, then reread it and take its advice if you
> decide
> to stick with this type of plot.
> 
> --
> Gregory (Greg) L. Snow Ph.D.
> Statistical Data Center
> Intermountain Healthcare
> greg.snow at imail.org
> 801.408.8111
> 
> 
> > -----Original Message-----
> > From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> > project.org] On Behalf Of Rodrigo Aluizio
> > Sent: Thursday, December 09, 2010 9:44 AM
> > To: R Help
> > Subject: [R] Barplot with "Independent" Lines Y axis
> >
> > Hi list. I'm plotting pluviometric (Rain) data as a barplot, and
then
> > adding
> > the salinity variable to this plot as lines. Obviously as these Y
> > scales are
> > completely different the salinity appears at the lower part of the
> > graph
> > extremely compacted. I need to plot the line at the exactly same area
> > of the
> > barplot but with its own Y axis (at the right), so the salinity can
> use
> > the
> > plot area freely. I tried the par(new=T), but it only works for high
> > level
> > plot functions (not for lines or points).
> >
> > Below are some example data and the code I'm using:
> >
> > Month	Rain	Salt
> > Fev	365.6	13
> > Mar	235	18
> > Abr	115.1	18
> > Mai	47.4	18.75
> > Jun	112	15
> > Jul	156.8	17
> > Ago	66.1	15
> > Set	149.8	14
> > Out	167.1	11.5
> > Nov	269.3	17.5
> >
> >
mp<-barplot(Dados$Rain,names.arg=rownames(Dados),ylab='Pluviosidade
> > (mm)',width=0.5,ylim=c(0,370),yaxp=c(0,370,10))
> > lines(mp,Dados$Salt,type='b',pch=19,lty='dotted')
> >
> > Any ideas?
> >
> > Thank you for the attention.
> >
> > Regards
> >
> > -------------------------------------------------------------------
> > MSc. Rodrigo Aluizio
> > Centro de Estudos do Mar/UFPR
> >
> > ______________________________________________
> > 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.

Peter Ehlers

2010-Dec-10 00:20 UTC

head link

[R] RES: Barplot with "Independent" Lines Y axis

On 2010-12-09 14:22, Rodrigo Aluizio wrote:> Oh sorry. An example say lots more than words. The data below, when
> submitted to twoord.plot return the mentioned error. Rain are bars and Salt
> lines, the bars appear and the error occurs with the salt data.
>
If you get an error complaining about needing finite ylim values,
then why not supply them?
This worked for me (after fixing your data which contains
several commas where decimal points are needed) and calling
the data frame 'd':

  with(d,
     twoord.plot(
       lx=1:14, ly=Rain, rx=1:14, ry=Salt,
       lylim=c(0,450), rylim=c(0,20),
       type=c('bar','b')))

(I had to use with(), because the 'data' argument
in twoord.plot seems not to function as intended.)

I have no idea why anyone would want to use a barplot
for the Rain data, but ...

The above should not be taken as an endorsement of
the production of abominable plots (to which, however,
I am becoming inured).

Peter Ehlers
> Point	Rain	Salt
> Fev/03	365.6	13
> Mar/03	235	18
> Abr/03	115.1	18
> Mai/03	47.4	18.75
> Jun/03	112	15
> Jul/03	156.8	17
> Ago/03	66.1	15
> Set/03	149.8	14
> Out/03	167,1	11.5
> Nov/03	269.3	17.5
> Dez/03	283.7	
> Jan/04	415	1,3
> Fev/04	322	8,5
> Mar/04	258.7	10.5
>
> -----Mensagem original-----
> De: Greg Snow [mailto:Greg.Snow at imail.org]
> Enviada em: quinta-feira, 9 de dezembro de 2010 17:57
> Para: Rodrigo Aluizio; 'R Help'
> Assunto: RE: [R] Barplot with "Independent" Lines Y axis
>
> Without seeing a reproducible example we cannot be sure, but my guess is
> that you are letting twoord.plot set the limits and the function does not
> remove missing values, if you specify rylim and or lylim arguments
> specifically, then it should not run into the problem you are seeing (I
> hope).
>
> If that does not work, then send a small reproducible example (the dput
> command is great for the data part) which will help us find the problem.
>
> -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain
> Healthcare greg.snow at imail.org 801.408.8111
>> >  -----Original Message-----
>> >  From: Rodrigo Aluizio [mailto:r.aluizio at gmail.com]
>> >  Sent: Thursday, December 09, 2010 12:27 PM
>> >  To: Greg Snow; 'R Help'
>> >  Subject: RES: [R] Barplot with "Independent" Lines Y
axis
>> >
>> >  Thank you for the function suggestion, works nicely for complete
data
>> >  vectors. Just another question. When using the twoord.plot I
reached
>> >  another
>> >  issue, it seems that this function can't handle NAs in one of
the
>> >  variables
>> >  (the data of one month for another variable is missing). The
lines and
>> >  barplot functions just interrupt the plot and continue after the
NA but
>> >  twoord.plot gives me an error: Error at plot.window(...) : finite
>> >  values are
>> >  necessary for 'ylim'
>> >
>> >  Is there a way to work around this error?
>> >
>> >  P.S.: I'm aware of the problems regarding this type of graph,
but this
>> >  time
>> >  it's not a choice of mine (unfortunately). Thank you anyway
for the
>> >  highlight, maybe it will help me arguing.
>> >
>> >  Regards
>> >
>> >  Rodrigo.
>> >
>> >  -----Mensagem original-----
>> >  De: Greg Snow [mailto:Greg.Snow at imail.org]
>> >  Enviada em: quinta-feira, 9 de dezembro de 2010 15:56
>> >  Para: Rodrigo Aluizio; R Help
>> >  Assunto: RE: [R] Barplot with "Independent" Lines Y
axis
>> >
>> >  Look at the twoord.plot function in the plotrix package, but be
sure to
>> >  read
>> >  the note on the help page, then reread it and take its advice if
you
>> >  decide
>> >  to stick with this type of plot.
>> >
>> >  --
>> >  Gregory (Greg) L. Snow Ph.D.
>> >  Statistical Data Center
>> >  Intermountain Healthcare
>> >  greg.snow at imail.org
>> >  801.408.8111
>> >
>> >
>>> >  >  -----Original Message-----
>>> >  >  From:r-help-bounces at r-project.org 
[mailto:r-help-bounces at r-
>>> >  >  project.org] On Behalf Of Rodrigo Aluizio
>>> >  >  Sent: Thursday, December 09, 2010 9:44 AM
>>> >  >  To: R Help
>>> >  >  Subject: [R] Barplot with "Independent" Lines
Y axis
>>> >  >
>>> >  >  Hi list. I'm plotting pluviometric (Rain) data as a
barplot, and then
>>> >  >  adding
>>> >  >  the salinity variable to this plot as lines. Obviously
as these Y
>>> >  >  scales are
>>> >  >  completely different the salinity appears at the lower
part of the
>>> >  >  graph
>>> >  >  extremely compacted. I need to plot the line at the
exactly same area
>>> >  >  of the
>>> >  >  barplot but with its own Y axis (at the right), so the
salinity can
>> >  use
>>> >  >  the
>>> >  >  plot area freely. I tried the par(new=T), but it only
works for high
>>> >  >  level
>>> >  >  plot functions (not for lines or points).
>>> >  >
>>> >  >  Below are some example data and the code I'm using:
>>> >  >
>>> >  >  Month	Rain	Salt
>>> >  >  Fev	365.6	13
>>> >  >  Mar	235	18
>>> >  >  Abr	115.1	18
>>> >  >  Mai	47.4	18.75
>>> >  >  Jun	112	15
>>> >  >  Jul	156.8	17
>>> >  >  Ago	66.1	15
>>> >  >  Set	149.8	14
>>> >  >  Out	167.1	11.5
>>> >  >  Nov	269.3	17.5
>>> >  >
>>> >  > 
mp<-barplot(Dados$Rain,names.arg=rownames(Dados),ylab='Pluviosidade
>>> >  >  (mm)',width=0.5,ylim=c(0,370),yaxp=c(0,370,10))
>>> >  > 
lines(mp,Dados$Salt,type='b',pch=19,lty='dotted')
>>> >  >
>>> >  >  Any ideas?
>>> >  >
>>> >  >  Thank you for the attention.
>>> >  >
>>> >  >  Regards
>>> >  >
>>> >  > 
-------------------------------------------------------------------
>>> >  >  MSc. Rodrigo Aluizio
>>> >  >  Centro de Estudos do Mar/UFPR
>>> >  >
>>> >  >  ______________________________________________
>>> >  >  R-help at r-project.org  mailing list
>>> >  >  https://stat.ethz.ch/mailman/listinfo/r-help
>>> >  >  PLEASE do read the posting
guidehttp://www.R-project.org/posting-
>>> >  >  guide.html
>>> >  >  and provide commented, minimal, self-contained,
reproducible code.
> ______________________________________________
> R-help at r-project.org  mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guidehttp://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

Dennis Murphy

2010-Dec-10 04:08 UTC

head link

[R] RES: Barplot with "Independent" Lines Y axis

Hi:

Like Peter Ehlers, I'm not a big fan of multiple response variables on a
page with different y-axis scaling, but if you have to do it, try not to let
one graphical metaphor interfere with/obscure/dominate the other (e.g., bars
and lines). This is my attempt, both with connecting lines and points, but
am holding my nose in the process:

library(plotrix)
dd <- read.table(textConnection("
Point   Rain    Salt
Fev/03  365.6   13
Mar/03  235     18
Abr/03  115.1   18
Mai/03  47.4    18.75
Jun/03  112     15
Jul/03  156.8   17
Ago/03  66.1    15
Set/03  149.8   14
Out/03  167.1   11.5
Nov/03  269.3   17.5
Dez/03  283.7   NA
Jan/04  415     1.3
Fev/04  322     8.5
Mar/04  258.7   10.5"), header = TRUE, stringsAsFactors = FALSE)
closeAllConnections()

dd$mo <- seq(nrow(dd))

with(dd,
  twoord.plot(lx = mo, ly = Rain, rx = mo, ry = Salt,
              lylim = c(0, 450), rylim = c(0, 20),
              lcol = 'red', rcol = 'blue',
              lpch = 1, rpch = 16, type = c('b', 'b'),
              xtickpos = mo, xticklab = Point)
    )
legend('bottomleft', leg = c('Rain (left axis)', 'Salt
(right axis)'),
         text.col = c('red', 'blue'), col = c('red',
'blue'), lty = c(1, 1)
)

I understand why these types of plots exist in general, and I can see why
you might want to compare two variables that are temporally related but have
different units of measurement, but by doing so, you are increasing the
cognitive task of the average viewer. As Greg Snow mentioned, read the
section of ?twoord,plot headlined 'Note' and observe that this plot has
crossing profiles (points connected by lines).  And remember that it's your
responsibility to properly convey the message of the plot to the viewer...

HTH,
Dennis

On Thu, Dec 9, 2010 at 2:22 PM, Rodrigo Aluizio <r.aluizio@gmail.com>
wrote:
> Oh sorry. An example say lots more than words. The data below, when
> submitted to twoord.plot return the mentioned error. Rain are bars and Salt
> lines, the bars appear and the error occurs with the salt data.
>
> Point   Rain    Salt
> Fev/03  365.6   13
> Mar/03  235     18
> Abr/03  115.1   18
> Mai/03  47.4    18.75
> Jun/03  112     15
> Jul/03  156.8   17
> Ago/03  66.1    15
> Set/03  149.8   14
> Out/03  167,1   11.5
> Nov/03  269.3   17.5
> Dez/03  283.7
> Jan/04  415     1,3
> Fev/04  322     8,5
> Mar/04  258.7   10.5
>
> -----Mensagem original-----
> De: Greg Snow [mailto:Greg.Snow@imail.org]
> Enviada em: quinta-feira, 9 de dezembro de 2010 17:57
> Para: Rodrigo Aluizio; 'R Help'
> Assunto: RE: [R] Barplot with "Independent" Lines Y axis
>
> Without seeing a reproducible example we cannot be sure, but my guess is
> that you are letting twoord.plot set the limits and the function does not
> remove missing values, if you specify rylim and or lylim arguments
> specifically, then it should not run into the problem you are seeing (I
> hope).
>
> If that does not work, then send a small reproducible example (the dput
> command is great for the data part) which will help us find the problem.
>
> --
> Gregory (Greg) L. Snow Ph.D.
> Statistical Data Center
> Intermountain Healthcare
> greg.snow@imail.org
> 801.408.8111
>
>
> > -----Original Message-----
> > From: Rodrigo Aluizio [mailto:r.aluizio@gmail.com]
> > Sent: Thursday, December 09, 2010 12:27 PM
> > To: Greg Snow; 'R Help'
> > Subject: RES: [R] Barplot with "Independent" Lines Y axis
> >
> > Thank you for the function suggestion, works nicely for complete data
> > vectors. Just another question. When using the twoord.plot I reached
> > another
> > issue, it seems that this function can't handle NAs in one of the
> > variables
> > (the data of one month for another variable is missing). The lines and
> > barplot functions just interrupt the plot and continue after the NA
but
> > twoord.plot gives me an error: Error at plot.window(...) : finite
> > values are
> > necessary for 'ylim'
> >
> > Is there a way to work around this error?
> >
> > P.S.: I'm aware of the problems regarding this type of graph, but
this
> > time
> > it's not a choice of mine (unfortunately). Thank you anyway for
the
> > highlight, maybe it will help me arguing.
> >
> > Regards
> >
> > Rodrigo.
> >
> > -----Mensagem original-----
> > De: Greg Snow [mailto:Greg.Snow@imail.org]
> > Enviada em: quinta-feira, 9 de dezembro de 2010 15:56
> > Para: Rodrigo Aluizio; R Help
> > Assunto: RE: [R] Barplot with "Independent" Lines Y axis
> >
> > Look at the twoord.plot function in the plotrix package, but be sure
to
> > read
> > the note on the help page, then reread it and take its advice if you
> > decide
> > to stick with this type of plot.
> >
> > --
> > Gregory (Greg) L. Snow Ph.D.
> > Statistical Data Center
> > Intermountain Healthcare
> > greg.snow@imail.org
> > 801.408.8111
> >
> >
> > > -----Original Message-----
> > > From: r-help-bounces@r-project.org [mailto:r-help-bounces@r-
> > > project.org] On Behalf Of Rodrigo Aluizio
> > > Sent: Thursday, December 09, 2010 9:44 AM
> > > To: R Help
> > > Subject: [R] Barplot with "Independent" Lines Y axis
> > >
> > > Hi list. I'm plotting pluviometric (Rain) data as a barplot,
and then
> > > adding
> > > the salinity variable to this plot as lines. Obviously as these Y
> > > scales are
> > > completely different the salinity appears at the lower part of
the
> > > graph
> > > extremely compacted. I need to plot the line at the exactly same
area
> > > of the
> > > barplot but with its own Y axis (at the right), so the salinity
can
> > use
> > > the
> > > plot area freely. I tried the par(new=T), but it only works for
high
> > > level
> > > plot functions (not for lines or points).
> > >
> > > Below are some example data and the code I'm using:
> > >
> > > Month       Rain    Salt
> > > Fev 365.6   13
> > > Mar 235     18
> > > Abr 115.1   18
> > > Mai 47.4    18.75
> > > Jun 112     15
> > > Jul 156.8   17
> > > Ago 66.1    15
> > > Set 149.8   14
> > > Out 167.1   11.5
> > > Nov 269.3   17.5
> > >
> > >
mp<-barplot(Dados$Rain,names.arg=rownames(Dados),ylab='Pluviosidade
> > > (mm)',width=0.5,ylim=c(0,370),yaxp=c(0,370,10))
> > > lines(mp,Dados$Salt,type='b',pch=19,lty='dotted')
> > >
> > > Any ideas?
> > >
> > > Thank you for the attention.
> > >
> > > Regards
> > >
> > >
-------------------------------------------------------------------
> > > MSc. Rodrigo Aluizio
> > > Centro de Estudos do Mar/UFPR
> > >
> > > ______________________________________________
> > > R-help@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.
>
> ______________________________________________
> R-help@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.
>
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