问题描述
我正在尝试为图形添加渐变色图例,但到目前为止,我尝试的所有操作都失败了...
有我的代码:
colors = dict(zip(
[0,1,2,3,4],["#000000","#E30613","#FF9933","#3399FF","#00CC66"]))
group_lk = comparative_cases_democracy.set_index('location')['score'].to_dict()
fig,ax = plt.subplots(figsize=(15,20))
def draw_barchart(df,value):
df = df.sort_values(by=value,ascending=True).tail(20)
ax.clear()
ax.barh(df['location'],df[value]*100,color=[colors[group_lk[x]] for x in df['location']])
dx = df[value].max() / 100 + 0.05
for i,(values,name) in enumerate(zip(df[value]*100,df['location'])):
ax.text(values-dx,i,name,color='#FFFFFF',size=14,weight=600,ha='right',va='center')
ax.text(values+dx,"{:.02f}".format(values),ha='left',va='center')
# ... polished styles
ax.text(0,1.03,'Percentage (x100) of deaths',transform=ax.transAxes,size=12,color='#777777')
ax.xaxis.set_ticks_position('top')
ax.tick_params(axis='x',colors='#777777',labelsize=12)
ax.set_yticks([])
ax.margins(0,0.01)
ax.grid(which='major',axis='x',linestyle='-')
ax.set_axisbelow(True)
ax.text(0,1.05,'Liability and Covid-19 numbers',size=24,ha='left')
ax.text(1,'by Célia Bayet',color='#777777',bBox=dict(facecolor='white',alpha=0.8,edgecolor='white'))
plt.Box(False)
draw_barchart(comparative_cases_democracy,'percentage_deaths')
我试图在我的barh中添加cmap,但是显然这不是有效的参数。 我也想使用自己的颜色并以此创建渐变色,这可能吗?
感谢您的帮助!
解决方法
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