Add first umap HN plots


Added the first files produced: work in progress label is because the paths to processed data (the .npy s) has to be defined w.r.t the repository.
Adding first files: notebook for simple scatter plot with bokeh(experiment/) and script for interactive plot(examples/).

See merge request !1

Bruno Papa authored Mar 17, 2020 and Alessia Marcolini committed Mar 17, 2020

Applied correction as specified in the merge request discussion: * file paths  * index syntax * default parameters to functions  * dropping data from dataframe