Displaying 20 results from an estimated 800 matches similar to: "Problem with Apriori"
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 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
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
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*
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
2011 Nov 11
0
predictive apriori
Dear list members,
I know that there is the arules package with the implementation of the
apriori algorithm. However i want to use the "predictive apriori" instead.
These algorithm can mine as rules as i want and there is an implementation
on weka.
There is some implementation on R?
--
Att,
Flávio Barros
[[alternative HTML version deleted]]
2011 Mar 09
2
No response after click the "show Rules" button on Tab "Associate".
Hi,
I am using Rattle 2.6.4 with R 2.12.2 on win64, is this a bug ?
Following is the content after execute the associate analysis process:
Summary of the Apriori Association Rules:
Number of Rules: 23351
Summary of the Measures of Interestingness:
support confidence lift
Min. :0.1250 Min. :1 Min. :2.667
1st Qu.:0.1250 1st Qu.:1 1st Qu.:2.667
Median :0.1250
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
2014 Sep 15
7
[Bug 83897] New: GK106 (GeForce GTX 660): Frequent GPU lockups
https://bugs.freedesktop.org/show_bug.cgi?id=83897
Priority: medium
Bug ID: 83897
Assignee: nouveau at lists.freedesktop.org
Summary: GK106 (GeForce GTX 660): Frequent GPU lockups
QA Contact: xorg-team at lists.x.org
Severity: major
Classification: Unclassified
OS: Linux (All)
Reporter: freedesk.apriori at
2002 Jun 12
2
data mining: finding association rules
Dear R-users!
I would like to search for "association rules" (and compute support and
confidence, for example) in a data set, and wonder if this can be done with
R (version 1.5.0 for Windows)?
Particulary, I wonder if
a) anyone has done something like that with R
or
b)maybe someone has written an R-interface to some existing
algorithm/software (e.g. to something like the
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 May 08
3
xl - no support for DRBD disks?
I tried to create a domain with drbd based disk as the backend
"drbd:<resourcename>,..," and I get a "unknown disk type" error.
I can spin out a patch if needed, but just wanted to know apriori if
this was left out for any specific reason.
shriram
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Xen-devel mailing list
Xen-devel@lists.xensource.com
2004 Sep 08
3
do.call("[", ...) question
Hi again everyone
I have an arbitrarily dimensional array "a" and a list "jj" of length
length(dim(a)). The elements of jj are vectors of indexes.
How do I use do.call() to extract a[ jj[[1]], jj[[2]], jj[[3]], ...] ?
Toy example follows:
a <- matrix(1:30,5,6)
jj <- list(5:1,6:1)
I want the following
a[ jj[[1]],jj[[2]] ]
How do I do this?
OBAttempts:
2014 Jun 09
6
[Bug 79820] New: Strange readout on fan1_input when pwm1_min < 33
https://bugs.freedesktop.org/show_bug.cgi?id=79820
Priority: medium
Bug ID: 79820
Assignee: nouveau at lists.freedesktop.org
Summary: Strange readout on fan1_input when pwm1_min < 33
QA Contact: xorg-team at lists.x.org
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter:
2013 May 05
1
Vegan problem
Hi All,
I am trying to perform CCA and RDA several times to compare their
performances. To do that I put this two functions of vegan package inside a
for loop. Unfortunatly when I am trying to perform the anova(by=axis) to
test the individual axes the function don't recognize the species
data.frame. The same problem occurs whem I try to run forward selection.
The same problem occur when I try
2008 Jul 24
1
How to get rule number in arules
Dear R experts
I generated rules using apriori method in arules package. Though I can access rules using %in% function but I am unable to access a specific rule by its unique identifier number. I want to use rule number for further analysis..
Thanking you in advance.
Daniel
Amsterdam
Send instant messages to your online friends
2009 Feb 02
1
Event sequence analysis
Dear R help,
I am analyzing sequences of events described by time and a unique event tag. And
I am searching for recurring patterns where patterns have to show up in a
certain time window, e.g. 5 or 10 minutes. Of course, inbetween these events
other events may occur.
I have applied basket analysis approaches like apriori or 'frequent item set'
algorithms with interesting results but
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 Oct 22
1
Is it possible to seek different Ogg Vorbis encoded packets from the File?
Hi All,
I am trying to program the 'Tremor' decoder onto an array of Processors.
I am using four Processors.
I did this experiment: I split the while(!eof){} in the main() in to
four tasks using if(!eof) statements. In this modification, each if()
decodes one packet of data at-a-time, sequentially. Then, I ran the code on
a single Processor and the decoding was successful. The
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,