dgroup: Draws UpAndDown plots for different grouping variables
Description
This function draws plots to compare the effects of different grouping variables.
Usage
dgroup(data, byvars, weight=1, v1, v2)
Value
uad
unlabelled horizontal UpAndDown plots
uadl
vertical UpAndDown plots with labelling
Arguments
data
the dataset to be analysed
byvars
the grouping variables to be used
weight
a variable for weighting the individual items, the default is for every item to be weighted equally
v1
the variable specifying the start value in the comparison
v2
the variable specifying the end value in the comparison
Author
Antony Unwin unwin@math.uni-augsburg.de
Details
This function prepares UpAndDown plots showing percentage and absolute changes for different grouping variables.
All unlabelled plots have the same vertical scale to ease comparisons. Scales of labelled plots are affected by label lengths.
To draw an unlabelled or labelled set of plots, apply grid.arrange to the appropriate output of dgroup.