[R] R help: fviz_nbclust’ is not available (for R version 3.5.2)

N Meriam
2019-01-16T19:48:03Z

Thanks for your valuable clarifications.
I tried all the steps again but the problem remains.
In fact,  "fviz_nbclust" is a function inside the package
"factoextra".
I run each step very carefully but the problem remains...It doesn't
make sense because I have installed factoextra.

This warning appears:
could not find function "fviz_nbclust"

On Wed, Jan 16, 2019 at 1:22 PM Jeff Newmiller <jdnewmil at
dcn.davis.ca.us> wrote:
>
> Concept 1: You don't install functions... you install packages that
have functions in them. There is a function fviz_nbclust in factoextra.
>
> Concept 2: Once a package is installed, you do NOT have to install it
again, e.g. every time you want to do that analysis. Making the installation
part of your script is not advised.
>
> Concept 3: Typically we do use the library function with a package name at
the beginning of every session where we want to use functions from that package.
However, that is optional... you could also just invoke the function directly
using factoextra::fviz_nbclust(...blahblah...). Having the library function
shortens this and if the package is not installed it provides a clear error
message that can be a reminder to the user to install the package.
>
> Execute your code line by line and solve the first error you encounter by
examining the error message and reviewing what that line of code is designed to
do.
>
> On January 16, 2019 11:00:07 AM PST, N Meriam <meriam.nef at
gmail.com> wrote:
> >Hello,
> >I'm struggling to install a function called
"fviz_nbclus".
> >
> >My code is the following:
> >pkgs <- c("factoextra",  "NbClust")
> >install.packages(pkgs)
> >library(factoextra)
> >library(NbClust)
> ># Standardize the data
> >load("df4.rda")
> >library(FunCluster)
> >
> >install.packages("fviz_nbclust")
> >#fviz_nbclust(df4, FUNcluster, method = c("silhouette",
"wss",
> >"gap_stat"))
> >
> >Installing package into ?C:/Users/DELL/Documents/R/win-library/3.5?
> >(as ?lib? is unspecified)
> >Warning in install.packages :
> >  package ?fviz_nbclust? is not available (for R version 3.5.2)
> >
> >Best,
> >Meriam
> >
> >______________________________________________
> >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.
>
> --
> Sent from my phone. Please excuse my brevity.



--
Meriam Nefzaoui
MSc. in Plant Breeding and Genetics
Universidade Federal Rural de Pernambuco (UFRPE) - Recife, Brazil