How to remove decimal numbers in pxbax pyplot?

Question

How can you remove the decimals of a px.bar plot with the library pyplot?

With the following dataframe:

Categoria   Importe
0   OTROS   1498.60
1   alquiler    150.00
2   compra_internet 740.36
3   deportes    909.87
4   recurrente  142.55
5   restaurantes    131.75
6   servicios   405.98
7   supermercado    592.26
8   transporte  663.31

I execute the next cell to crear a bar grapich with pyplot.

fig = px.bar(df_cuatri[df_cuatri['Tipo']=='gasto'].groupby(['Categoria'], as_index = False).sum(),
             x='Categoria', y='Importe', title='Último cuatrimestre', color='Categoria', text='Importe')
fig.update_layout(xaxis={'categoryarray' : ['alquiler', 'servicios', 'supermercado', 'deportes']})

fig.show()

With the parameter text='Importe' I am able to set the value on each bar, but it has many decimal, like: 663.310000000001. How can I round those values? The column of the dataframe is already round.

image description

Answer 1

The format of the annotation text is specified by update_traces(texttemplate='').

import pandas as pd
import numpy as np
import io

data = '''
Categoria   Importe
0   OTROS   1498.60
1   alquiler    150.00
2   compra_internet 740.360000004
3   deportes    909.8700000000001
4   recurrente  142.55
5   restaurantes    131.75
6   servicios   405.98
7   supermercado    592.259999999
8   transporte  663.310000000001
'''

df_cuatri = pd.read_csv(io.StringIO(data), delim_whitespace=True)

import plotly.express as px

fig = px.bar(df_cuatri,
             x='Categoria', y='Importe', title='Último cuatrimestre', color='Categoria', text='Importe')
fig.update_layout(xaxis={'categoryarray' : ['alquiler', 'servicios', 'supermercado', 'deportes']})

fig.update_traces(texttemplate='%{text:.2f}')
fig.show()