Database Reference
In-Depth Information
Median :0.02613
Mean :0.02951
3rd Qu.:0.03223
Max. :0.07483
includes transaction ID lists: FALSE
mining info:
data ntransactions support confidence
Groceries 9835 0.02 1
The top 10 most frequent 2-itemsets are displayed next, sorted by their support.
Notice that whole milk appears six times in the top 10 2-itemsets ranked by
support. As seen earlier,
{whole milk}
has the highest support among all
the 1-itemsets. These top 10 2-itemsets with the highest support may not be
interesting; this highlights the limitations of using support alone.
inspect(head(sort(itemsets, by ="support"),10))
items support
1 {other vegetables,
whole milk} 0.07483477
2 {whole milk,
rolls/buns} 0.05663447
3 {whole milk,
yogurt} 0.05602440
4 {root vegetables,
whole milk} 0.04890696
5 {root vegetables,
other vegetables} 0.04738180
6 {other vegetables,
yogurt} 0.04341637
7 {other vegetables,
rolls/buns} 0.04260295
8 {tropical fruit,
whole milk} 0.04229792
9 {whole milk,
soda} 0.04006101
10 {rolls/buns,
soda} 0.03833249
