ntal_barchart_distribution.html 上找到了創建堆疊條形圖的代碼。問題是圖中未顯示小數位。在代碼中，我發現列表中沒有小數，但如果將它們更改為小數，則不會顯示（參見下面的代碼）。如果嘗試將 str 更改為在 ax.text(x, y, str(int(c)) 行中浮動。這實際上顯示小數，但它們都是 0。非常感謝。import numpy as npimport matplotlib.pyplot as pltcategory_names = ['Strongly disagree', 'Disagree','Neither agree nor agree', 'agree', 'Strongly agree']results = { 'Question 1': [(10), (14.99), (17.01), (32), (26)]}def survey(results, category_names): labels = list(results.keys()) data = np.array(list(results.values())) data_cum = data.cumsum(axis=1) category_colors = plt.get_cmap('RdYlGn')( np.linspace(0.15, 0.85, data.shape[1])) fig, ax = plt.subplots(figsize=(9.2, 5)) ax.invert_yaxis() ax.xaxis.set_visible(False) ax.set_xlim(0, np.sum(data, axis=1).max()) for i, (colname, color) in enumerate(zip(category_names, category_colors)): widths = data[:, i] starts = data_cum[:, i] - widths ax.barh(labels, widths, left=starts, height=0.5, label=colname, color=color) xcenters = starts + widths / 2 r, g, b, _ = color text_color = 'white' if r * g * b < 0.5 else 'darkgrey' for y, (x, c) in enumerate(zip(xcenters, widths)): ax.text(x, y, str(int(c)), ha='center', va='center', color=text_color) ax.legend(ncol=len(category_names), bbox_to_anchor=(0, 1), loc='lower left', fontsize='small') return fig, axsurvey(results, category_names)
1 回答
jeck貓
TA貢獻1909條經驗 獲得超7個贊
編寫str(int(c))時，首先將數字轉換為整數，從而去掉小數，然后將其轉換為字符串。要獲得所需的輸出，請使用str(c)，或者如果您希望能夠更好地控制數字的格式（例如選擇小數點后的位數），請替換str(int(c))為'{:.2f}'.format(c)
category_names = ['Strongly disagree', 'Disagree','Neither agree nor agree', 'agree', 'Strongly agree']
results = {
'Question 1': [(10), (14.99), (17.01), (32), (26)]
}
def survey(results, category_names):
labels = list(results.keys())
data = np.array(list(results.values()))
data_cum = data.cumsum(axis=1)
category_colors = plt.get_cmap('RdYlGn')(
np.linspace(0.15, 0.85, data.shape[1]))
fig, ax = plt.subplots(figsize=(9.2, 5))
ax.invert_yaxis()
ax.xaxis.set_visible(False)
ax.set_xlim(0, np.sum(data, axis=1).max())
for i, (colname, color) in enumerate(zip(category_names, category_colors)):
widths = data[:, i]
starts = data_cum[:, i] - widths
ax.barh(labels, widths, left=starts, height=0.5,
label=colname, color=color)
xcenters = starts + widths / 2
r, g, b, _ = color
text_color = 'white' if r * g * b < 0.5 else 'darkgrey'
for y, (x, c) in enumerate(zip(xcenters, widths)):
ax.text(x, y, '{:.2f}'.format(c), ha='center', va='center',
color=text_color)
ax.legend(ncol=len(category_names), bbox_to_anchor=(0, 1),
loc='lower left', fontsize='small')
return fig, ax
survey(results, category_names)
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