Feature Request: Example of stacked horizontal bar chart from pandas groupby object.

[HarveySummers]

Request for Example of stacked horizontal bar chart from pandas groupby object, preferably with red/green for good/bad values for each bar. Why? I can't get this to work in matplotlib 2.0, which seems to choke on this code

Is this a BUG REPORT or FEATURE REQUEST?:

Uncomment only one, leave it on its own line:

type: feature

Environment:

• Chartify version(s): n/a
• Operating System(s): Win 10
• Python version(s): 3.6.1

What happened: See https://stackoverflow.com/questions/53583715/trying-to-print-two-color-stacked-barh-using-matplotlib for details.

Note the issue seems to be creating the graph properly from a pandas groupby object.

Here is the unredacted code

if  'Incomplete Evidence' in df.Evaluation:    
    gb = df.groupby(group_by).Evaluation.value_counts(
                    ).unstack(level=-1).nlargest(limit, columns='Incomplete Evidence').stack()
elif 'Complete Evidence' in df.Evaluation:
     gb = df.groupby(group_by).Evaluation.value_counts(
                    ).unstack(level=-1).nlargest(limit, columns='Complete Evidence').stack()
else:
     gb = df.groupby(group_by).Evaluation.value_counts()

.# rbar = [x for x in gb.unstack(level=-1)['Incomplete Evidence']] .# gbar = [x for x in gb.unstack(level=-1)['Complete Evidence']]

. ### Temporarily using a bar chart
chart = gb.unstack(level=-1).plot.bar(color=chart_colors, stacked=True) .# chart = plt.barh(0, rbar, color='r') .# chart = plt.barh(1, gbar, left=rbar, color='g')

What you expected to happen:

A normal horizontal stacked bar with red/green from a groupby object.

How to reproduce it (as minimally and precisely as possible):

See code above - no way to create object in matplotlib to work as expected.

Anything else we need to know?: