使用 Matplotlib 自定義表格 - 着色和 fonts

Question

我想使用 Matplotlib 創建要導出到 pdf 的表。

我在以下問題上掙扎。

1. 以自動方式為單元格的着色創建一個列表列表。 第一列應該是白色的，第二列應該是綠色的，依此類推。

2. 要為我用綠色着色的行設置 alpha 值，以增加透明度。

df = pd.DataFrame({'Name':['Z', 'S', 'H'],
                  'Category':['A', 'A', 'A'],
                  'Number':[2,1,3],
                  'P':[0,0,0]})

col_col=[]
blue = '#00005A'
green = '#95C13E'

for i in range(len(df.columns)):
    col_col.append(blue)
    
fig, ax = plt.subplots()
plt.rcParams['font.family'] = 'Arial'
fig.patch.set_visible(False)
ax.axis('off')
ax.axis('tight')

# Can I use a for loop to create the list of list colo in smart way?
colo = [["w",green,"w", green],["w",green,"w", green],["w",green,"w", green]] 

table=ax.table(cellText=df.values, colLabels=df.columns, loc='center', 
         colColours=col_col, 
         cellColours=colo)

table=ax.table(cellText=df.values, colLabels=df.columns, loc='center', 
         colColours=col_col, 
         cellColours=colo)

for i, j in zip(table.properties()['celld'], table.properties()['children']):
    if i[0]==0:
        j.get_text().set_color('white')
        j.get_text().set_weight('bold')

fig.tight_layout()

plt.show()

Answer 1

最簡單的方法是將您指定的綠色轉換為 RGBA 格式並指定透明度。

import pandas as pd
import matplotlib.pyplot as plt
import matplotlib.colors as mcolors　#import

df = pd.DataFrame({'Name':\['Z', 'S', 'H'\],
                  'Category':\['A', 'A', 'A'\],
                  'Number':\[2,1,3\],
                  'P':\[0,0,0\]})

col_col=\[\]
blue = '#00005A'
green = '#95C13E'
green = mcolors.to_rgba(green, alpha=0.5)　#update and set alpha value

for i in range(len(df.columns)):
    col_col.append(blue)
    
fig, ax = plt.subplots()
plt.rcParams\['font.family'\] = 'Arial'
fig.patch.set_visible(False)
ax.axis('off')
ax.axis('tight')

# Can I use a for loop to create the list of list colo in smart way?
colo = \[\["w",green,"w", green\],\["w",green,"w", green\],\["w",green,"w", green\]\] 

table=ax.table(cellText=df.values, colLabels=df.columns, loc='center', 
         colColours=col_col, 
         cellColours=colo)

for i, j in zip(table.properties()\['celld'\], table.properties()\['children'\]):
    if i\[0\]==0:
        j.get_text().set_color('white')
        j.get_text().set_weight('bold')

fig.tight_layout()

plt.show()