vba_choropleth - Transparent polygons

[ivandorte]

Good evening,
I was trying vba_choropleth and I noted that polygons of the lowest class are colored as transparent. Is this a bug?
This is the code that I used:

>>> vba_choropleth(x, 
                   y, 
                   df, rgb_mapclassify=dict(classifier='quantiles', k=5),
                   alpha_mapclassify=dict(classifier='quantiles', k=5), 
                   legend=True, 
                   cmap='viridis', 
                   ax=ax)

And this is the result. France, Portugal and Spaign and others are transparent:

Thanks! Ivan!

[martinfleis]

Hi, yeah, we need to fix the way we stretch the values here so it starts at low alpha but not 0. It has been already reported (and partially discussed) in #138.