Displaying 20 results from an estimated 1000 matches similar to: "Using "cpquery" function from bnlearn package inside loop"
2017 Jul 13
2
bnlearn and cpquery
Hi all
I have built a Bayesian network using discrete data using the bnlearn
package.
When I try to run the cpquery function on this data it returns NaN for some
some cases.
Running the cpquery in debug mode for such a case (n=10^5, method="lw")
creates the following output:
generated a grand total of 1e+05 samples.
> event has a probability mass of 14982.37 out of
2017 Jul 13
0
bnlearn and cpquery
Dear Ross,
This usually happen because you have parameters with a value of NaN in your
network, because the data you estimate the network from are sparse and you
are using maximum likelihood estimates. You should either 1) use simpler
networks for which you can estimate all conditional distributions from the
data or 2) use posterior estimates for the parameters.
Cheers,
Marco
On 13 July
2012 Sep 26
1
Specifying a response variable in a Bayesian network
I'm trying to teach myself about Bayesian Networks and am working with the
following data and the bnlearn package.
I understand the conceptual aspects of BNs, but I'm not sure how to specify
the response variables in R when constructing
a dag plot. I've cecked ?hc and done numerous google searches without luck.
Can anyone help?
library("bnlearn")
2007 Oct 04
2
bnlearn package compilation failure on MacOSX
Hi all.
I've recently uploaded a package (bnlearn) to CRAN. It builds fine
on both Linux (32 and 64 bit) and Windows, but fails on MacOSX ix86
because of C90 vs C99 issues:
http://www.r-project.org/nosvn/R.check/r-patched-macosx-ix86/bnlearn-00install.html
Since I've no MacOSX machine at hand, I would like to ask you:
why is C99 not the default for gcc on MacOSX ix86? Is it safe to
2013 Apr 10
1
bnlearn: how to compute boot strength with mmhc and a blacklist
Dear R-help list:
I have two related questions regarding the functions boot.strength and
custom.strength in bnlearn.
1)
I am using the following commands (on a set of continuous data, the
example here run on fake data):
> myblacklist<-data.frame(from=c("x1", "x1", "x1", "x2", "x2",
"x2")) , to=c("x2",
2013 Apr 14
2
Cross validation for Naive Bayes and Bayes Networks
Hi,
I need to classify, using Naive Bayes and Bayes Networks, and estimate
their performance using cross validation.
How can I do this?
I tried the bnlearn package for Bayes Networks, althought I need to get
more indexes, not only the error rate (precision, sensitivity, ...).
I also tried the *e1071* package, but I could not find a way to do
cross-validation.
Thanks for everyone.
Guilherme.
2012 Apr 11
1
bayesian gene network construction
Hello:
I have looked at the bnlearn and deal packages for infering bayesian
network. Can anyone suggest any other suitable package for constructing
bayesian gene regulatory network using gene expression data?
Thanks!
John
[[alternative HTML version deleted]]
2008 Jul 01
2
Prediction with Bayesian Network?
Hi,
I am interested in using a bayesian network as a predictor (machine
learning); however, I can't get any of the implementations (deal, nblearn)
to learn & predict stuff.
Shouldn't there also be probabilites for each node after the learning phase,
how can I access these?
Cheers,
Stephan
--
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2013 Nov 30
1
bnlearn and very large datasets (> 1 million observations)
Hi
Anyone have experience with very large datasets and the Bayesian Network
package, bnlearn? In my experience R doesn't react well to very large
datasets.
Is there a way to divide up the dataset into pieces and incrementally learn
the network with the pieces? This would also be helpful incase R crashes,
because I could save the network after learning each piece.
Thank you.
2017 Jun 22
2
MODISTools help - with reproducible examples
I am using the R-package MODISTools (different than MODIS) and am having a lot of difficulty troubleshooting my code. I have spent awhile going through MODISTools tutorials, searching for my error code, looking at the source code. However, I have not been able to find any relevant information related to my error message.
The study I am currently working on involves a herd of 200 African buffalo
2015 Mar 27
4
postfix sasl -> haproxy -> dovecot auth
I will install cyrus-sasl and see how it goes.
Anyway, it would be nice to have same features (authentication agains imap) in dovecot.
On 27 Mar 2015, at 16:27, Benny Pedersen <me at junc.eu> wrote:
> Edgaras Luko?evi?ius skrev den 2015-03-27 14:58:
>
>> I don?t want to allow public network facing servers to be able to
>> reach passwords database. And I want to
2017 Jun 22
3
MODISTools Help
I am using MODIS Tools and am having a lot of difficulty troubleshooting my code.
I am a PhD student studying African buffalo in Kruger National Park, South Africa. The study I am currently working on involves a herd of 200 African buffalo caught every six months for 4 years. I am trying to use EVI and NDVI to assess seasonal variation thus I would like mean EVI and NDVI for each observation
2017 Jun 23
2
MODISTools help - with reproducible examples
I have and they have not yet replied - however that was only two or three days ago.
I have included a code example.
> On Jun 22, 2017, at 8:25 PM, David Winsemius <dwinsemius at comcast.net> wrote:
>
>>
>> On Jun 22, 2017, at 4:44 PM, Caroline <gliddeca at science.oregonstate.edu> wrote:
>>
>> I am using the R-package MODISTools (different than
2017 Jun 23
0
MODISTools help - with reproducible examples
> On Jun 22, 2017, at 4:44 PM, Caroline <gliddeca at science.oregonstate.edu> wrote:
>
> I am using the R-package MODISTools (different than MODIS) and am having a lot of difficulty troubleshooting my code. I have spent awhile going through MODISTools tutorials, searching for my error code, looking at the source code. However, I have not been able to find any relevant information
2017 Jun 23
1
MODISTools Help
On 6/22/2017 7:05 PM, Caroline wrote:
> ##MODISTools example
> library(MODISTools)
> library(lubridate)
> setwd('~/Documents/Modis data')
>
> #####MODISTools with buffalo data
>
> ###Read in data rename for easier coding
> tbdata <- read.csv('~/Desktop/All TB data for EVI, NDVI.csv')
Since this dataset is only on your desktop it cannot help us
2017 Jun 23
0
MODISTools Help
##MODISTools example
library(MODISTools)
library(lubridate)
setwd('~/Documents/Modis data')
#####MODISTools with buffalo data
###Read in data rename for easier coding
tbdata <- read.csv('~/Desktop/All TB data for EVI, NDVI.csv')
firstobs <- subset(tbdata, capture.ID == 'B1-1108')
firstobs <- firstobs[,c(1,2,2,3,4)]
colnames(firstobs) <- c('id',
2017 Jun 23
0
MODISTools help - with reproducible examples
Please read up [1][2][3] on what constitutes reproducibility. A sample of data that triggers the problem is essential.
[1] http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example
[2] http://adv-r.had.co.nz/Reproducibility.html
[3] https://cran.r-project.org/web/packages/reprex/index.html
--
Sent from my phone. Please excuse my brevity.
On June 23, 2017 6:54:48
2015 Mar 27
4
postfix sasl -> haproxy -> dovecot auth
Can?t dovecot authenticate against imap?
What I need is to make smtp authentication balanced and keep everything in backend (private network)
On 27 Mar 2015, at 13:29, Benny Pedersen <me at junc.eu> wrote:
> Edgaras Luko?evi?ius skrev den 2015-03-27 12:21:
>
>> is it possible to configure configure haproxy to work with postfix
>> sasl and dovecot auth like this:
2017 Jun 22
1
MODISTools Help
1. You should always cc the list unless there is a clear reason not to.
2. You still have failed to follow the posting guide: You say you have
difficulty troubleshooting your code, but you have shown us no code.
You got an error message that seems explicit, but with neither code
nor data, I do not know whether anyone can make sense of it. In any
case, I certainly cannot.
Cheers,
Bert
Bert
2015 Mar 27
2
postfix sasl -> haproxy -> dovecot auth
I don?t want to allow public network facing servers to be able to reach passwords database. And I want to segregate roles of the servers.
If I will setup dovecot locally I will still have to provide it access to database (eg. /etc/dovecot/dovecot-sql.conf.ext).
On 27 Mar 2015, at 15:49, Benny Pedersen <me at junc.eu> wrote:
> Edgaras Luko?evi?ius skrev den 2015-03-27 14:34:
>>