Can I get the edge settings to apply on all stacked bar as one?
here is an example:
df = pd.DataFrame([[2,5,7,11], [4,8,11,45]]).T
ax = df.plot.bar(stacked=True)
ax.containers[0][2].set_edgecolor('green')
ax.containers[0][2].set_linewidth(5)
ax.containers[1][2].set_edgecolor('green')
ax.containers[1][2].set_linewidth(5)
this gives:
what I want is the green edge to be around the whole bar without breaking between the stacked rectangles, any ideas?
I'm not sure you can specify to not plot one of the edges for each of the Rectangle. So one idea is to plot a Rectangle independently and access the positions, height and width from the ax.containers.
from matplotlib.patches import Rectangle
df = pd.DataFrame([[2,5,7,11], [4,8,11,45]]).T
ax = df.plot.bar(stacked=True)
ax.add_patch(Rectangle(xy=ax.containers[0][2].get_xy(),
width=ax.containers[0][2].get_width(),
height=ax.containers[0][2].get_height()
+ax.containers[1][2].get_height(),
fc='none', ec='green', linewidth=5)
)
You can draw it in two steps: first the stacked bars and then the summed bars.
from matplotlib import pyplot as plt
import numpy as np
import pandas as pd
df = pd.DataFrame([[2, 5, 7, 11], [4, 8, 11, 45]]).T
ax = df.plot.bar(stacked=True)
ax = df.sum(axis=1).plot.bar(facecolor='none', edgecolor='green', lw=5, ax=ax)
To only draw a rectangle around some bars, set the sum to NaN except for the bars to be highlighted:
from matplotlib import pyplot as plt
import numpy as np
import pandas as pd
df = pd.DataFrame([[2, 5, 7, 11], [4, 8, 11, 45]]).T
dfs = df.sum(axis=1)
dfs.iloc[df.index != 2] = np.nan
ax = df.plot.bar(stacked=True)
ax = dfs.plot.bar(facecolor='none', edgecolor='green', lw=5, ax=ax)
