[R] getting a Likert plot from a data frame

[Liviu Andronic]

Dear Richard


On Tue, May 22, 2012 at 3:20 PM, Richard M. Heiberger <rmh at temple.edu> wrote:
> 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)
>

Loading library(HH) and running the code above fails with this error:
>  as.pyramidLikert(likert(mydata), panel.width=.46)
Error in inherits(x, "trellis") : could not find function "likert"

Am I doing something wrong?
Liviu

> sessionInfo()
R version 2.14.2 (2012-02-29)
Platform: x86_64-pc-linux-gnu (64-bit)

locale:
 [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
 [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
 [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
 [7] LC_PAPER=C                 LC_NAME=C
 [9] LC_ADDRESS=C               LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C

attached base packages:
[1] splines   grid      stats     graphics  grDevices utils     datasets
[8] methods   base

other attached packages:
 [1] HH_2.2-23           latticeExtra_0.6-19 RColorBrewer_1.0-5
 [4] leaps_2.9           multcomp_1.2-12     survival_2.36-12
 [7] mvtnorm_0.9-9992    lattice_0.20-6      plyr_1.7.1
[10] Defaults_1.1-1      fortunes_1.5-0      sos_1.3-1
[13] brew_1.0-6