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drill
2005 Jun 25
1
Confidence interval bars on Lattice barchart with groups
...39;Young','Young','Young','Young','Young',
'Old','Old','Old','Old','Old',
'Young','Young','Young','Young','Young'))
# add dummy lower and upper confidence limits
testdata$dsr_ll <- testdata$dsr - 0.7
testdata$dsr_ul <- testdata$dsr + 0.5
# examine the test data
testdata
# check that a normal barchart with groups works OK - it does
barchart(geog_area ~ dsr | year, testdata, groups=sex, origin = 0)
# this works as expected, but not sure what teh error messages mean...