Gavin,
thank you for using likert()
There are several problems in the use of a data.frame.
1. df is a bad name to use because df is the name of a base function (that
isn't an error, it is bad style).
2. the as.character() made the line you sent not work.
3. you indeed have the variable cat as a factor. you need to make it the
row.names of the data.frame.
mydata <- data.frame(
row.names=c("group1", "group2", "group3", "group4", "group5"),
males=c(20,30,45,12,5),
females=c(35,23,32,8,5))
## make a pyramid Likert chart
as.pyramidLikert(likert(mydata), panel.width=.46)
Rich
On Tue, May 22, 2012 at 7:29 AM, Gavin Rudge <g.ru...@bham.ac.uk> wrote:
> I'm creating a stacked bar chart using the likert command in the HH
> package. My data are in a data frame, with two numeric variables and a
> categorical variable, I can't get likert to use the column containing the
> categorical variable as a my y axis label.
>
> Here is a quick example:
>
> library(HH)
> #my data are:
> df<-data.frame(as.character(cat=c("group1","group2","group3","group4",
> "group5")),males=c(20,30,45,12,5),females=c(35,23,32,8,5))
> #make a pyramid Likert chart
> p<-likert(df)
> as.pyramidLikert(p)
>
> It tries to plot three variables here when I just want two. I think I
> understand what is happening - my categorical variable is treated as a
> factor and I think it gets inserted as an integer into the matrix which the
> command derives from my data fame, to make the plot with(?) It's then used
> as a variable to be plotted just like the other two variables. what I don't
> get is how the example given in the package does something differently,
> which is how I want mine to work.
>
> ## Population Pyramid
> data(USAge.table)
> USA79 <- USAge.table[75:1, 2:1, "1979"]/1000000
> PL <- likert(USA79,
> main="Population of United States 1979 (ages 0-74)",
> xlab="Count in Millions",
> ylab="Age",
> scales=list(
> y=list(
> limits=c(0,77),
> at=seq(1,76,5),
> labels=seq(0,75,5),
> tck=.5))
> )
> PL
> as.pyramidLikert(PL)
>
> This does exactly what I'm trying to achieve. here the two population
> counts are plotted in the likert plot and the age groups in the first
> columns are used as labels.
>
> I can't work out why in my example the age group variable is not used in
> the same way as the in my plot in the same way as the agegroups in this
> example, other than the example takes it's data from a table and mine is
> coming from a data frame. The end point I want is a stacked Likert bar
> chart based on a data frame where the column containing the description of
> my groups is used as the y axis labels and the other two columns are used
> to draw the bars. I'm sure I'm missing a simple solution. any help
> gratefully received.
>
> Gavin.
>
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>
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