Göstergenin sırasını ters çevir

Question

Çubuk grafiğini çizmek için aşağıdaki kodu kullanıyorum. Ters sırayla bir efsane sunmanız gerekiyor. Nasıl yapabilirim?

colorsArr = plt.cm.BuPu(np.linspace(0, 0.5, len(C2))) 
p = numpy.empty(len(C2), dtype=object) 
plt.figure(figsize=(11,11)) 

prevBar = 0 
for index in range(len(C2)): 
    plt.bar(ind, C2[index], width, bottom=prevBar, color=colorsArr[index], label=C0[index]) 
    prevBar = prevBar + C2[index] 

# positions of the x-axis ticks (center of the bars as bar labels) 
tick_pos = [i+(width/2) for i in ind] 

plt.ylabel('Home Category') 
plt.title('Affinity - Retail Details(Home category)') 
# set the x ticks with names 
plt.xticks(tick_pos, C1) 
plt.yticks(np.arange(0,70000,3000)) 
plt.legend(title="Line", loc='upper left') 
# Set a buffer around the edge 
plt.xlim(-width*2, width*2) 
plt.show() 

Answer 1

Bunu,

handles, labels = ax.get_legend_handles_labels() 
ax.legend(handles[::-1], labels[::-1], title='Line', loc='upper left') 

---

import numpy as np 
import matplotlib.pyplot as plt 
np.random.seed(2016) 

C0 = list('ABCDEF') 
C2 = np.random.randint(20000, size=(len(C0), 3)) 
width = 1.0 
C1 = ['foo', 'bar', 'baz'] 
ind = np.linspace(-width, width, len(C1)) 


colorsArr = plt.cm.BuPu(np.linspace(0, 0.5, len(C2))) 
fig = plt.figure(figsize=(11,11)) 
ax = fig.add_subplot(1, 1, 1) 

prevBar = 0 
for height, color, label in zip(C2, colorsArr, C0): 
    h = ax.bar(ind, height, width, bottom=prevBar, color=color, label=label) 
    prevBar = prevBar + height 

plt.ylabel('Home Category') 
plt.title('Affinity - Retail Details(Home category)') 

# positions of the x-axis ticks (center of the bars as bar labels) 
tick_pos = [i+(width/2.0) for i in ind] 
# set the x ticks with names 
plt.xticks(tick_pos, C1) 
plt.yticks(np.arange(0,70000,3000)) 

handles, labels = ax.get_legend_handles_labels() 
ax.legend(handles[::-1], labels[::-1], title='Line', loc='upper left') 

plt.show() 

Answer 2

Senin veri yoksa bu test edilmedi, ama bu burada controlling legend entries belgelere dayanmaktadır.

handles = [] 
for index in range(len(C2)): 
    h = plt.bar(ind, C2[index], width, bottom=prevBar, color=colorsArr[index], label=C0[index]) 
    handles.append(h) 
    prevBar = prevBar + C2[index] 

plt.legend(title="Line", loc='upper left', handles=handles[::-1]) 

Answer 3

kullanın efsane dikey aralığı için negatif bir sayı diyebiliriz:

matplotlib.pyplot.stackplot(X, *revDataValues, 
    linewidth=1.0, 
    edgecolor='black') 

matplotlib.pyplot.legend(revNames, 
    loc=6, bbox_to_anchor=(1.05, 0.5), 
    labelspacing=-2.5, frameon=False,   # reverse legend 
    fontsize=9.0) 

Stacked Area Chart with reversed legend