Error al ponderar data set

[AlfCano]

Tengo como referencia los siguientes vídeos:
https://www.youtube.com/watch?v=ivi6Tzby0ko
https://www.youtube.com/watch?v=ojcFFjI7RaI

En RKTeaching aparece el siguiente error cuando se intentan ponderar datos:

Error in weightDataFrame(mis.datos, "Frecuencias") : 
  The freq variable should contain frequencies and must be numeric.

La variable Frecuencias es numérica,
Gracias.
RKWard: Versión 0.7.0b

OK this is what I did to get this plugin working on Linux Mint 19.1 I guess windows has to do something with the "The Windows toolset":

sudo apt purge r-base r-recommended r-cran-*
sudo apt autoremove
sudo apt-get install build-essential g++ libxml2-dev openssl libssh2-1-dev libssl-dev libcurl4-gnutls-dev build-dep libcurl4-openssl-dev libgfortran3 python-igraph gfortran
sudo apt-get install libx11-dev
sudo apt-get install xorg-dev
sudo apt install apt-transport-https software-properties-common
sudo add-apt-repository ppa:marutter/c2d4u3.5
sudo xed /etc/apt/sources.list

add: 'deb https://cloud.r-project.org/bin/linux/ubuntu bionic-cran35/' save and exit

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
sudo add-apt-repository ppa:rkward-devel/rkward-stable-cran
sudo apt install r-base r-base-core r-recommended r-base-dev
sudo apt install r-cran-rgl r-cran-rjags r-cran-snow r-cran-ggplot2 r-cran-igraph r-cran-lme4 r-cran-rjava r-cran-devtools r-cran-roxygen2 r-cran-rjava r-cran-xlsx r-cran-rcppeigen
sudo rkward

At the R terminal as sudo (currently: 3.6):

install.packages(c("R2HTML","car","e1071","Hmisc","plyr","ggplot2","ez"),dep=TRUE)
install.packages("devtools", dep=TRUE)
library(devtools)
update.packages(ask = FALSE, checkBuilt = TRUE)
install.packages("acepack")
install.packages("ndl")
install_github("asalber/rkTeaching_es", ref="develop")

Or change the last for:
install_github("asalber/rkTeaching_es")

Or English:
install_github("rkward-community/rk.Teaching", ref="develop")