Displaying 20 results from an estimated 5000 matches similar to: "How to get rule number in arules"
2010 Feb 18
1
how to change number of itemes appeare in right-hand-side of the rule with apriori in R(arules)?
Hi All,
I use arules library, and try to create an association rules for this
transaction file:
a,c,f,3,4,5
b,e,1,2,4
a,c,e,f,1,3,4,5
d,5
b,c,e,f,1,2,3,4
a,c,e,f,1,3,4,5
b,c,e,f,1,3,4
b,e,1,2,4
a,c,e,f,1,3,4,5
a,b,c,e,f,1,3,4
a,c,d,f,3,4,5
I want to get the rule such:
{c,e,f}=> {3,4,5}
I used this command:
ar=apriori(tr, parameter=list(support=.4, confidence=0.8, maxlen=11),
appearance
2013 Mar 11
2
Función Inspect() en "arules" package
Buenas tardes,
Necesito ayuda con la función inspect() del paquete "arules".
Mis comandos son:
r1 <- apriori(tran, parameter=list(support=0.012, confidence=0.7))
r1
summary(r1)
#todo bien, tengo 5 reglas y todo claro en el resume
#pero al pedir
inspect(r1)
inspect(sort(r1, by = "confidence"))
me arroja el error:
Error en UseMethod("inspect", x) :
no
2011 Jan 28
1
arules package question- apriori/S4 object export question
I am new to R( but quickly being awed by the range of this it can accomplish,
you have one more convert to the useR universe). I have successfully
implemented the apriori function and are getting great results. My question
concerns how to export these results. I have read lots about write.csv
functions and exporting data frames and other standard objects. Im having
difficulty working with these S4
2012 Jan 17
1
arules "killed"
Hi, I recently got a bizarre message when running arules. It just said
"Killed" and quit. Anyone know why this might have happened? I am running R
on an AWS quad xl ubuntu instance.
Here is some information, including dataset size and the parameters:
parameter specification:
confidence minval smax arem aval originalSupport support minlen
maxlen
0.0003581251 0.1 1 none
2007 Oct 17
1
How to save association rules generated by arules package
Hi,
I have been able to generate association rules for Market Basket Analysis
using the following codes:
****************************************************************************
*******************************************
library("arules")
rules <- read.csv("write1.csv",na.strings=c(".", "NA", "", "?"),header=TRUE)
2009 Jul 17
1
Arules questions. I need some help please
Question 2a)
I am also working with arules package and I have the following problem
let suppose the matrix b like:
b<-matrix(c(1,1,1,1,1,1,0,0,1,1,1,1,0,0,1,1,0,1,1,1,1,1,1,1),nrow=6)
rownames(b)=c("T1", "T2", "T3", "T4", "T5", "T6")
colnames(b)=c("It1", "It2", "It3", "It4")
bt<-as(b,
2009 Feb 28
0
arules: rules are built on item ordering in the dataframe, rather than
Hi,
I'm trying out the package arules and I'm having a bit of trouble
getting my data to work properly. I have a set of transactions with
the purchased products but each product could appear in a different
column in the data frame. This causes the rules to be built based on
the ordering, which is not significant.
Here is an example:
# # Code:
my.df <- data.frame(
2008 Jul 16
1
Help regarding arules package
Dear R experts,
I need help to make my little program efficient which now takes 2hrs to complete.
Using arules package I developed set of rules consisted of 900 rules. Now I want to check whether a lower rule is a subset of a higher premises rule. And if it is a subset of higher premises rule then drop this rule. I am using following code but it takes too much time.
nor<-length(rules)
2012 Jun 25
1
Arules - predict function issues - subscript out of bounds
Hi,
I'm doing a Market Basket Analysis in which I have a list of transaction
id's in column 2 and transactions(product names) in column 1. I read this
into a transaction file using a
txn<-read.transaction(file="data.csv",format='single', rm.duplicates=F,
cols=c(1,2))
If I want to use the apriori algorithm everything seems to be running fine.
However it is when I want
2013 Oct 31
0
arules package apriori() fn error message XXXX
Hi everybody,
I am using the apriori() fn in the arules package and am encountered an error.
rules <- apriori(rdayst,parameter = list(support = 0.01, confidence = 0.6))
"You chose a very low absolute support count of 0. You might run of memory."
I assume this is related to the value of .01 specified for the support
= argument. If so, what is a safe and reliable max value for
2009 Dec 02
2
Arules - Association Rules
Hello everybody!
I'm trying some datamining, but i'm having some problems with arule
package, in the end of processing R "had to be closed". I already
tryied to reinstall the 2.10 version, change the computer and
realocated more virtual memory.
Does anyone had this problem to?
I had a hiphoteses that i have to prepare the data, somehow i don't
know.
Thanks for helping!!!
2013 May 21
0
Arules: getting rules with only one item in the left-hand side
Hello,
I am using the package arules to generate association rules. I would like
to restrict the rules so that in the left-hand side there's only one
particular element, let's call it "potatoe".
If I do this:
rules <- apriori(dtm.mat, parameter = list(sup = 0.4, conf =
0.9,target="rules"), appearance = list(lhs = c("potatoe")))
I get "potatoe"
2011 Dec 07
2
arules package intsallation
I'm using R version 2.13.0 (2011-04-13) on Mac OS X and I get the following error message with library(arules):
Loading required package: Matrix
Loading required package: lattice
Attaching package: 'Matrix'
The following object(s) are masked from 'package:base':
det
Error in dyn.load(file, DLLpath = DLLpath, ...) :
unable to load shared object
2011 Oct 10
1
pmml for random forest & rules
Hi,
I am having some trouble using R 2.13.1 for generating a pmml object
of of class "c('randomForest.formula', 'randomForest')"
I see that these methods are available:
> methods(pmml)
[1] pmml.coxph* pmml.hclust* pmml.itemsets* pmml.kmeans*
pmml.ksvm* pmml.lm* pmml.multinom* pmml.nnet*
pmml.rpart*
[10] pmml.rsf* pmml.rules* pmml.survreg*
2006 Jul 28
1
arules package: using image() deliveres unexpected results
Dear Collegues,
it seems like there is a problem with the image()-method in the package arules.
Using an ordninary matrix works fine:
image(matrix(rnorm(200), 10, 20), axes = FALSE, col=brewer.pal(9, "Blues") )
delivers an image with blue colors and no axes.
Using an object of the class "associations" (arules package) does not work:
image(items(ta.eclat), axes = FALSE,
2008 Mar 17
0
arules - getting transaction data in
Hi All
Hoping someone can help me with the "transactions" object. I am struggling
to get my data in. I know the answer is in the help somewhere I'm sure, I
just cannot find it. Essentially, I have data in this format (though I can
change it if it particularly unsuitable)
Transaction_id, store , salesman, date_time , items
1 , waterfront, john ,
2008 Mar 14
0
arules package (apriori)
hello,
I want to perform the Apriori association rules algorithm to my data. The set of data contains missing values and consists in a combination of continuous and categorical variables.
After discretizing the continuous variables, I wrote the following instruiction to perform Apriori, but I obtained the following error message:
> rules <- apriori(dd_new,parameter=list(supp=0.5, conf=0.9,
2010 Apr 19
2
Huge data sets and RAM problems
Dear all,
This is the first time I am sending mail to the mailing list, so I
hope I do not make a mistake...
The last months I have been working on my MSc thesis project on
performing data mining techniques on user logs of a
software-as-a-service application. The main problem I am experiencing
is how to process the huge amount of data. More specifically:
I am using R 2.10.1 in a laptop with
2011 Jun 03
2
Arules: R Crashes when running eclat with tidLists=TRUE
Hello,
I'm using the eclat function of the arules package (1.0-6) for the
identification of frequent itemsets. I need the tidLists, but if I set
in the function tidLists=TRUE R crashes (Windows XP Professional SP3,
32 bit, R version 2.12.1 (2010-12-16), reproducible on two different
computers) with two different error messages or non at all. Minimum
examples are:
library(arules)
2008 Nov 28
7
Examples of advanced data visualization
Dear R-help,
I am looking for ideas and presentations of new and advanced data visualization
methods. As an example of what I am searching for, the 'Many Eyes' pages at
http://manyeyes.alphaworks.ibm.com/manyeyes/
may provide a good paradigm. I would be interested even if it will not be easy
to implement such examples in R, e.g. because of the interactive nature of these
graphical