Never mind. Working with the arules package notes I was able to figure it
out
rules <- apriori(fp.trans,
parameter = list(supp = 0.1, conf = 0.2, target = "rules"),
appearance = list(rhs="Sugar", default="lhs"),
control = list(verbose=F))
rules.sorted <- sort(rules, by="lift")
inspect(rules.sorted)
-----Original Message-----
From: R-help <r-help-boun...@r-project.org> On Behalf Of Jeff Reichman
Sent: Sunday, September 23, 2018 5:18 PM
To: r-help@r-project.org
Subject: [R] Consequent sorting
r-help Forum
I'm using the following code to sort the "right-hand side (rhs, consequent)
of the rules output from the arules packages, which works. But what I'd
really like is the ability to subset my rules where the rhs = "some item
set"
rules_info <-
data.frame(
LHS = labels(lhs(rules)),
RHS = labels(rhs(rules)),
quality(rules)
)
rules_info[ order(rules_info$RHS=), ]
For example using my code above I'm able to sort as follow's
179 {Cereals,Eggs,Tomatoes,Vinegar} {Bread} 0.1428571 1.0000000
1.1666667 1
184 {Eggs,Milk,Pork,Sugar} {Bread} 0.1428571 1.0000000
1.1666667 1
189 {Eggs,Milk,Pork,Tomatoes} {Bread} 0.1428571 1.0000000
1.1666667 1
1 {} {Cereals} 0.2857143
0.2857143 1.0000000 2
8 {Vinegar} {Cereals} 0.1428571
1.0000000 3.5000000 1
15 {Tomatoes} {Cereals} 0.1428571
0.5000000 1.7500000 1
But what I'd really like to do is just get (say) {Bread} like .
179 {Cereals,Eggs,Tomatoes,Vinegar} {Bread} 0.1428571 1.0000000
1.1666667 1
184 {Eggs,Milk,Pork,Sugar} {Bread} 0.1428571 1.0000000
1.1666667 1
189 {Eggs,Milk,Pork,Tomatoes} {Bread} 0.1428571 1.0000000
1.1666667 1
Jeff Reichman
______________________________________________
R-help@r-project.org <mailto:R-help@r-project.org> mailing list -- To
UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
