Cancelling the 0.5s on x-axis

[JinjinJanelle]

Altair automatically added float numbers on the axis between the whole numbers. Is there a way to cancel it?
Thank you!

[jakevdp]

You can set the tickMinStep property of the axis. For example:

import altair as alt
import pandas as pd

df = pd.DataFrame({
    'x': range(5),
    'y': range(5)
})

alt.Chart(df).mark_point().encode(
    alt.X('x', axis=alt.Axis(tickMinStep=1.0)),
    alt.Y('y')
)

[JinjinJanelle]

Thank you! This is very useful!

[morberg]

In Altair 4.1.0 the gridlines still remain, although the ticks are no longer shown. Is this a bug? I would expect the gridlines to disappear as well as in your screenshot.

[aurimas-ww]

It appears that tickMinStep no longer works in Altair 5.0.1 - the example from @jakevdp now produces a chart with 0.5 tick labels, too. Is there a different solution for this now? From what I can see, the tickMinStep parameter is still valid in Altair 5.

[zizaozi]

Using tickCount instead in jakevdp's example works for me
alt.X('x', axis=alt.Axis(tickCount=len(df)))