configure_axisY title error

[Liripo]

Use configure_axisY to modify the y-axis title, but the it becomes empty.

import altair as alt

# load a sample dataset as a pandas DataFrame
from vega_datasets import data
cars = data.cars()

# make the chart
chart = alt.Chart(cars).mark_point().encode(
    x='Horsepower',
    y='Miles_per_Gallon',
    color='Origin',
).interactive()

chart.configure_axisY(title="test")

altair version is '5.1.1'

[afonit]

@Liripo, I have searched and I am not seeing it documented anywhere that title can be passed to configure_axisY, I may be missing where it says that.

Not sure if you are looking for a work-around or alternative way to achieve what you wrote, but this will get it done:

import altair as alt

# load a sample dataset as a pandas DataFrame
from vega_datasets import data
cars = data.cars()

# make the chart
chart = alt.Chart(cars).mark_point().encode(
    x='Horsepower',
    y=alt.Y('Miles_per_Gallon').title('Miles Per Gallon'),
    color='Origin',
).interactive()

[Liripo]

@afonit I saw here https://altair-viz.github.io/user_guide/configuration.html#config-axis:

I want to modify the axis title after the graph is drawn. Is there any other way?

[debbes80]

Using configure_axisYQuantitative instead seems to work.