rowdistr {s20x} | R Documentation |
Produces summaries and plots from a cross-tabulation. The output produced depends on the parameter "comp". Columns relate to response categories and rows to different populations.
rowdistr(crosstablist, comp="basic", conf.level=0.95)
crosstablist |
a list produced by "crosstabs" or a matrix containing a 2-way table of counts (without marginal totals). |
comp |
three options: "basic" (default), "within", and "between". |
conf.level |
confidence level of the intervals. |
The "basic" option (default) produces the response distribution for each row population together with comparative bar charts.
If comp="between" the resulting output displays how the probability of falling into a response class (column) differs between populations. Confidence intervals for differences in proportions are produced together with a set of barcharts with LSD intervals.
If comp="within" the resulting output shows the extent to which the component probabilities of the same row distribution differ. Separate Chi-square tests for uniformity are produced for each row distribution as are confidence intervals for differences in proportions within the same distribution.
A matrix of row proportions, i.e cell counts divided by row marginals.
"crosstabs"
data(body.df) z <- crosstabs(~ ethnicity + married, data = body.df) rowdistr(z) rowdistr(z, comp="between") rowdistr(z, comp="within") ##from matrix of counts z <- matrix(c(4,3,2,6,47,20,40,62,11,8,7,22,3,0,1,10), 4, 4) rowdistr(z)