Python Plotly 将轴数格式化为 % [英] Python Plotly format axis numbers as %

问题描述

这是数据框

df = pd.DataFrame({"col_1":[0.00143,0.00653,0.00732],"col_2":[0.00984,0.00192,0.00751]},index=['A','B','C'])

这是我的情节代码:

trace0 = go.Bar(
x=[df.columns[0],df.columns[1]],
y=[df.ix[0,0],df.ix[0,1]],
name=df.index[0],
# marker=dict(color=cof_pal[0]
)


trace1 = go.Bar(
x=[df.columns[0],df.columns[1]],
y=[df.ix[1,0],df.ix[1,1]],
name=df.index[1],
# marker=dict(color=cof_pal[1]
)



trace2 = go.Bar(
x=[df.columns[0],df.columns[1]],
y=[df.ix[2,0],df.ix[2,1]],
name=df.index[2],
# marker=dict(color=cof_pal[2]
)


layout = go.Layout(showlegend=True, title="Title", font=dict(size=Chart_Title_Font_Size),
               yaxis=dict(title='Percentage Change(%)', titlefont=dict(size=yaxis_font_size), tickfont=dict(size=yaxis_font_size)),
               xaxis=dict(title='Time', titlefont=dict(size=xaxis_font_size), tickfont=dict(size=yaxis_font_size))
              )


data = [trace0,trace1,trace2]

fig = go.Figure(data=data, layout=layout)
iplot(fig, filename='fig1')

我需要 y 轴为 x.xx% 格式(或小数点后 n 位).

I need the y axis to be x.xx% format (or n digits after the decimal point).

另一个问题是:y轴标题百分比变化(％)"与y轴数字太接近了.如何进一步移动?

Another question is: the y axis title "Percentage Change(%)" is too close to the y axis numbers. How to move it further?

推荐答案

你可以设置 tickformat 在 layout 选项中.

You could set tickformat in the layout options.

import plotly.graph_objects as go

layout = go.Layout(yaxis=dict(tickformat=".2%"))

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