Dear R users, apologies for the total beginner's question. I would like to create a barchart for some temperature values with the y axis on the right hand side of the plot. On this plot would like to overlay some time series data (in the form of a line) for some other variable called Index. The y axis for this latter variable should be on the left hand side of the plot.
An example of what I would like to obtain: https://sites.google.com/site/graphtests1/ I have tried to do this using ggplot2 and this where I have got (for data see at the bottom of the e-mail): none<-theme_blank() p<-ggplot(tmp3,aes(x=year,y=Temperature)) p1<-p+geom_bar(stat="identity",fill="#9ACD32",colour="#000000") p1 + geom_line(data=tmp3, aes(x=year, y=Index), colour="black",size=1)+opts(legend.position="none",panel.grid.major=none,panel.grid.minor=none)+opts(panel.border=none)+theme_bw(base_size=20) This code does not do what I want because the Temperature y axis should be on the left hand side and the the y axis for the other variable called Index is not even there (should in theory be on the left hand side). I also get the following warning message when I run that code "I get Warning message:Stacking not well defined when ymin != 0". (Should I worry about this?). I do not know whether ggplot2 can is the best package for creating the type of plot that I want. I would, however, be very grateful for any suggestions on to improve the above code or on how I could use other packages to create the plot I want. thanks! Mario "year","Temperature","Index" 1966,2.9,1 1967,4.5,1.24 1968,1.9,1.46 1969,1,1.37 1970,2.9,1.87 1971,4.3,2.66 1972,3.9,3.07 1973,4.3,3.91 1974,4.9,4.16 1975,4.4,4.32 1976,4.5,2.52 1977,2,2.44 1978,2.8,2.18 1979,-0.4,1.18 1980,2.3,1.93 1981,3,2.13 1982,0.3,1.92 1983,1.7,2.24 1984,3.3,2.01 1985,0.8,1.89 1986,-1.1,0.66 1987,0.8,1.01 1988,4.9,1.5 1989,5.2,2.11 1990,4.9,2.02 1991,1.5,0.7 1992,3.7,0.75 1993,3.6,1.28 1994,3.2,1.37 1995,4.8,2.01 1996,2.3,1.54 1997,2.5,2 1998,5.2,2.07 1999,5.3,2.11 2000,4.9,2.42 2001,3.2,2.29 2002,3.6,2.15 2003,3.9,2.21 2004,4.8,2.14 2005,4.3,2.33 2006,3.7,1.89 2007,5.8,2.03 2008,4.9,2.58 ______________________________________________ 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.
