I want to obtain  a barplot with error bars and a mean plot with error bars
with other scale on the left in the same plot.   I need help to get the same
x axis (centered) when overlay two plots (barplot2 and plotCI (or
lineplot.CI) with errorbars), with diferent y axis. I use par (new=T) but
the  X axis names are not centered with the figures.

An example of my data:


  mean1<-cbind(55.5,56.42,56.38,55.28)
SD1<-cbind(10,9 ,7 ,3)
x<-rbind(mean1,SD1)
  colnames(x)<-c("Autumn","Spring","Summer","Winter")
rownames(x)<-c("MeanProts","SD")


  mean2<-cbind(10,15,9,8)
 SD2<-cbind(2,3 ,1 ,5)
y<-rbind(mean2,SD2)
  colnames(y)<-c("Autumn","Spring","Summer","Winter")
rownames(y)<-c("MeanDNA","SD")

Thanks in advance.


Nacho






-- 
Ignacio Alborés Blanes
Grupo de Investigación en  Recursos Marinos y Pesquerías
Universidade de A Coruña.
Campus da Zapateira. C/Rúa da Fraga, 10.
15008. A Coruña. Spain.
+34(981)167000 ext. 2204 Fax. +34(981)167065
www.recursosmarinos.net

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