Displaying 20 results from an estimated 1000 matches similar to: "caret version 4.06 released"
2007 Oct 05
0
new packages: caret, caretLSF and caretNWS
Three more packages will be showing up on your mirror soon.
The caret package (short for "Classification And REgression Training")
aims to simplify the model building process. The package has functions
for
- data splitting: balanced train/test splits, cross-validation and
bootstrapping sampling functions. There is also a function for maximum
dissimilarity sampling.
-
2007 Oct 05
0
new packages: caret, caretLSF and caretNWS
Three more packages will be showing up on your mirror soon.
The caret package (short for "Classification And REgression Training")
aims to simplify the model building process. The package has functions
for
- data splitting: balanced train/test splits, cross-validation and
bootstrapping sampling functions. There is also a function for maximum
dissimilarity sampling.
-
2008 Sep 06
0
New caret packages
New major versions of the caret packages (caret 3.37, caretLSF 1.23 and
caretNWS 0.23) have been uploaded to CRAN.
caret is a package for building and evaluating a wide variety of predictive
models. There are functions for pre-processing, tuning models using
resampling, visualizing the results, calculating performance and estimating
variable importance. caretNWS and caretLSF are two parallel
2008 Sep 06
0
New caret packages
New major versions of the caret packages (caret 3.37, caretLSF 1.23 and
caretNWS 0.23) have been uploaded to CRAN.
caret is a package for building and evaluating a wide variety of predictive
models. There are functions for pre-processing, tuning models using
resampling, visualizing the results, calculating performance and estimating
variable importance. caretNWS and caretLSF are two parallel
2007 Nov 29
0
New versions of the caret (3.08) and caretLSF (1.12) packages
New versions of the caret (3.08) and caretLSF (1.12) packages have been
released.
caret (short for "Classification And REgression Training") aims to
simplify the model building process. The package has functions for data
splitting, pre-processing and model tuning, as well as other
miscellaneous functions.
In the new versions:
- The elasticnet and the lasso (from the enet package)
2007 Nov 29
0
New versions of the caret (3.08) and caretLSF (1.12) packages
New versions of the caret (3.08) and caretLSF (1.12) packages have been
released.
caret (short for "Classification And REgression Training") aims to
simplify the model building process. The package has functions for data
splitting, pre-processing and model tuning, as well as other
miscellaneous functions.
In the new versions:
- The elasticnet and the lasso (from the enet package)
2010 Sep 29
0
caret package version 4.63
Version 4.63 of the caret package is now on CRAN.
caret can be used to tune the parameters of predictive models using
resampling, estimate variable importance and visualize the results.
There are also various modeling and "helper" functions that can be
useful for training models.
caret has wrappers to over 99 different models for classification
and regression. See the package vignettes
2010 Sep 29
0
caret package version 4.63
Version 4.63 of the caret package is now on CRAN.
caret can be used to tune the parameters of predictive models using
resampling, estimate variable importance and visualize the results.
There are also various modeling and "helper" functions that can be
useful for training models.
caret has wrappers to over 99 different models for classification
and regression. See the package vignettes
2011 Mar 16
1
object not found whilst loading namespace
I've been updating a package and, when installing a local devel
version, I get an error "object 'confusionMatrix' not found whilst
loading namespace". Looking around online, it appears that this might
be related to loading a specific RData file, but it doesn't seem to be
the case AFAICT.
I've installed the devel version in the last week without issues and
the
2010 Nov 23
5
cross validation using e1071:SVM
Hi everyone
I am trying to do cross validation (10 fold CV) by using e1071:svm method. I
know that there is an option (?cross?) for cross validation but still I
wanted to make a function to Generate cross-validation indices using pls:
cvsegments method.
#####################################################################
Code (at the end) Is working fine but sometime caret:confusionMatrix
2011 Mar 18
2
Need help with error
Hi R users,
I am getting the following error when using the splsda function in R
v2.12.1:
"Error in switch(classifier, logistic = { : EXPR must be a length 1
vector"
What does this mean and how do I fix this?
Thank you in advance!
Best,
Savi
2012 Apr 06
0
resampling syntax for caret package
Max and List,
Could you advise me if I am using the proper caret syntax to carry out
leave-one-out cross validation. In the example below, I use example
data from the rda package. I use caret to tune over a grid and select
an optimal value. I think I am then using the optimal selection for
prediction. So there are two rounds of resampling with the first one
taken care of by caret's train
2010 May 17
0
version 4.39 of the caret package
Version 4.39 of the caret package was sent to CRAN.
caret can be used to tune the parameters of predictive models using
resampling, estimate variable importance and visualize the results.
There are also various modeling and "helper" functions that can be
useful for training models. caret has wrappers to over 75 different
models for classification and regression. See the package
2010 May 17
0
version 4.39 of the caret package
Version 4.39 of the caret package was sent to CRAN.
caret can be used to tune the parameters of predictive models using
resampling, estimate variable importance and visualize the results.
There are also various modeling and "helper" functions that can be
useful for training models. caret has wrappers to over 75 different
models for classification and regression. See the package
2009 Feb 05
0
no visible binding for global variable
Everyone,
I know that this has been discussed a few times on the list, but I
think that there is a high false positive rate of messages from
findGlobals during R CMD check (I know the help page has that "The
result is an approximation").
Here are two examples of from the caret package:
This function get the message "predictors.gbm: no visible binding for
global variable
2018 Feb 27
0
Random Seed Location
In case you don't get an answer from someone more knowledgeable:
1. I don't know.
2. But it is possible that other packages that are loaded after set.seed()
fool with the RNG.
3. So I would call set.seed just before you invoke each random number
generation to be safe.
Cheers,
Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking
2018 Feb 26
3
Random Seed Location
Hi all,
For some odd reason when running na?ve bayes, k-NN, etc., I get slightly
different results (e.g., error rates, classification probabilities) from run
to run even though I am using the same random seed.
Nothing else (input-wise) is changing, but my results are somewhat different
from run to run. The only randomness should be in the partitioning, and I
have set the seed before this
2018 Mar 04
0
Random Seed Location
Thank you, everybody, who replied! I appreciate your valuable advise! I will move the location of the set.seed() command to after all packages have been installed and loaded.
Best regards,
Gary
Sent from my iPad
> On Mar 4, 2018, at 12:18 PM, Paul Gilbert <pgilbert902 at gmail.com> wrote:
>
> On Mon, Feb 26, 2018 at 3:25 PM, Gary Black <gwblack001 at sbcglobal.net>
>
2012 Aug 15
2
sensitivity and specificity in svyglm??
Hello,
As obtained from a table svyglm clasificaion, sensitivity and specificity. The funtion ConfusionMatrix () of the library (caret)
gives these results but not how to apply it to svyglm.
thanks
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2011 Jun 22
1
caret's Kappa for categorical resampling
Hello,
When evaluating different learning methods for a categorization problem with
the (really useful!) caret package, I'm getting confusing results from the
Kappa computation. The data is about 20,000 rows and a few dozen columns,
and the categories are quite asymmetrical, 4.1% in one category and 95.9% in
the other. When I train a ctree model as:
model <- train(dat.dts,