[R] trainControl and train functions are not found in caret package

[ruipbarradas at sapo.pt]

Hello,

Works with me, but I'm using R v 3.3.0. Note that your version of R is  
over 1 year old, try updating it.

install.packages("caret")
install.packages("e1071")

library(caret)
library(e1071)

set.seed(100)

tr.control <- trainControl(method="cv", number=10)

class(tr.control)
[1] "list"

Hope this helps,

Rui Barradas

 

Citando Muhammad Bilal <Muhammad2.Bilal at live.uwe.ac.uk>:

> Firstly, many thanks for kind consideration.
>
> ***I wrote the following R code:
> install.packages("caret")
> install.packages("e1071")
>
> library(caret)
> library(e1071)
>
> set.seed(100)
>
> tr.control <- trainControl(method="cv", number=10)
> Error: could not find function "trainControl"
>
> cp.grid <- expand.grid(.cp = (0:10)*0.001)
>
> tr_m <- train(project_delay ~ project_lon + project_lat +  
> project_duration + sector + contract_type + capital_value, data =  
> trainPFI, method="rpart", trControl=tr.control, tuneGrid = cp.grid)
> Error: could not find function "train"
>
> I hope this will explain the situation I am facing right now.
>
> ***Below are the details of session info:
>> sessionInfo()
>
> R version 3.2.0 (2015-04-16)
> Platform: i386-w64-mingw32/i386 (32-bit)
> Running under: Windows 7 (build 7601) Service Pack 1
>
> locale:
> [1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United  
> States.1252
> [3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C
> [5] LC_TIME=English_United States.1252
>
> attached base packages:
> [1] tcltk     stats     graphics  grDevices utils     datasets   
> methods   base
>
> other attached packages:
> [1] e1071_1.6-7      lattice_0.20-31  caTools_1.17.1   
>  rpart.plot_1.5.3 rpart_4.1-10
> [6] XML_3.98-1.4     maps_3.1.0       plotrix_3.6-1    xlsx_0.5.7     
>    xlsxjars_0.6.1
> [11] rJava_0.9-8      sqldf_0.4-10     RSQLite_1.0.0    DBI_0.3.1     
>     gsubfn_0.6-6
> [16] proto_0.3-10     ggplot2_2.1.0
>
> loaded via a namespace (and not attached):
> [1] codetools_0.2-11 digest_0.6.9     scales_0.4.0     grid_3.2.0     
>    bitops_1.0-6
> [6] stringr_1.0.0    munsell_0.4.3    nnet_7.3-9       labeling_0.3   
>    foreach_1.4.3
> [11] iterators_1.0.8  chron_2.3-47     MASS_7.3-40      plyr_1.8.3   
>      stringi_1.0-1
> [16] magrittr_1.5     reshape2_1.4.1   gtable_0.2.0     
>  colorspace_1.2-6 tools_3.2.0
> [21] nlme_3.1-120     class_7.3-12     Rcpp_0.11.6
>
> I even tried loading the caret package using require() function but  
> no success.
>
> Many Thanks and
>
> Kind Regards
>
> --
> Muhammad Bilal
> Research Fellow and Doctoral Researcher,
> Bristol Enterprise, Research, and Innovation Centre (BERIC),
> University of the West of England (UWE),
> Frenchay Campus,
> Bristol,
> BS16 1QY
>
> muhammad2.bilal at live.uwe.ac.uk<mailto:olugbenga2.akinade at live.uwe.ac.uk>
>
> ________________________________
> From: Jeff Newmiller <jdnewmil at dcn.davis.ca.us>
> Sent: 08 May 2016 02:37:52
> To: Muhammad Bilal; r-help at r-project.org
> Subject: Re: [R] trainControl and train functions are not found in  
> caret package
>
> Reproducible example? At least whatever you did... and the output of  
> sessionInfo().
>
> Did you use library function to load it into memory?
> --
> Sent from my phone. Please excuse my brevity.
>
> On May 7, 2016 5:40:26 PM PDT, Muhammad Bilal  
> <Muhammad2.Bilal at live.uwe.ac.uk> wrote:
>
> Hi All,
>
> Whilst using 'trainControl' and 'train' functions in R studio, an  
> error is raised stating that the functions are not found.
>
> I tried installing the caret function a few times, but the error persists.
>
> Can anyone guide me how to access these functions.
>
> Many Thanks and
>
> Kind Regards
>
> --
> Muhammad Bilal
> Research Fellow and Doctoral Researcher,
> Bristol Enterprise, Research, and Innovation Centre (BERIC),
> University of the West of England (UWE),
> Frenchay Campus,
> Bristol,
> BS16 1QY
>
> muhammad2.bilal at live.uwe.ac.uk<mailto:olugbenga2.akinade at live.uwe.ac.uk>
>
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>
> ________________________________
>
> R-help at 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 at 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.htmland provide commented,  
> minimal, self-contained, reproducible code.

 

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