Python Plotly format axis numbers as %

Question

Here's the dataframe

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

Here's my plotly code:

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')

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

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

If you have two questions, ask separately

Andrew Li
– Andrew Li

2017-01-11 03:45:49 +00:00
Commented Jan 11, 2017 at 3:45 — Andrew Li
– Andrew Li, Commented Jan 11, 2017 at 3:45

jason m · Accepted Answer · 2021-11-30 14:13:21Z

34

You could set tickformat in the layout options.

import plotly.graph_objects as go

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

edited Nov 30, 2021 at 14:13

jason m

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answered Jan 11, 2017 at 10:33

Maximilian Peters

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3 Comments

maniA Over a year ago

@Maximilian, what about if one wants to have integers as labels of x-axis? stackoverflow.com/questions/49628849/…

Maximilian Peters Over a year ago

@maniA: for categorical values/strings type='categorical' can be used, see the detailed answer in the link.

Daniel Himmelstein Over a year ago

Another option is to use the update_yaxis function like fig.update_yaxes(tickformat="%").

Ram Prajapati · Accepted Answer · 2019-11-04 07:29:07Z

6

You can use ticksuffix in the layout options.

yaxis=dict(ticksuffix=".00%")

layout = go.Layout(                
                yaxis=dict(ticksuffix=".00%", tickangle=45, title='Percentage Change(%)')

https://plot.ly/python/reference/#layout-yaxis

answered Nov 4, 2019 at 7:29

Ram Prajapati

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Comments

jeffhale · Accepted Answer · 2022-05-30 22:48:34Z

4

After you've created your fig object you can use fig.update_layout(yaxis_tickformat=".2%").

If someone didn't want a decimal or the numbers to the right of it showing they could use "2%".

answered May 30, 2022 at 22:48

jeffhale

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