Initial data analysis

Here is my favorite R list of packages

library(DataExplorer)
plot_str(iris)
plot_bar(iris)
plot_density(iris)
plot_correlation(iris)
plot_prcomp(iris)

see also

devtools::install_github('https://github.com/paulvanderlaken/ppsr')
score(iris, x = 'Sepal.Length', y = 'Petal.Length', algorithm = 'glm')[['pps']]

while for robustness of models I use

devtools::install_github("chiragjp/quantvoe")
library(quantvoe)

Python versions come here or here.