Thank you very much!
Sang Chul
On May 2, 2008, at 12:06 PM, Dieter Menne wrote:
Sang Chul Choi <choi <at> biology.rutgers.edu> writes:
I like mosaic function of "vcd" package. I have played around it. I
have found out that mosaic plot data table is 2-dimension does not
stretch when you enlarge a mosaic plot. It is okay when data table is
3 or more dimension. The first one is of 3-dimension table case, and
the second one is 2-dimension. With the first plot, you can drag
window to enlarge a plot. With the second, I cannot.
===========================================================
music = c(210, 194, 170, 110,
190, 406, 730, 290)
dim(music) = c(2, 2, 2)
dimnames(music) = list(Age = c("Old", "Young"),
Education = c("High", "Low"),
Listen = c("Yes", "No"))
mosaic(music)
===========================================================
===========================================================
music = c(210, 194, 170, 110,
190, 406, 730, 290)
dim(music) = c(2, 4)
dimnames(music) = list(Age = c("Old", "Young"),
Education = c("High", "Low", "Upper",
"Lower"))
mosaic(music)
Not really: note that the images resizes correctly, it just keeps
its square
aspect-ratio.
vcd is so strongly modularized that it can be difficult to find the
information
required. Check strucplot, where it says:
strucplot
keep_aspect_ratio logical indicating whether the aspect ratio
should be
fixed or not. If unspecified, the default is TRUE for two-
dimensional tables and
FALSE otherwise.
So try
mosaic(music, keep_aspect_ratio=FALSE)
but think over if that's really what you want. In most cases it makes
sense to keep the square aspect for 2x2 cases
Dieter
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