Whiskers on boxplot notworking on temporal data

[benjcabalona1029]

I am trying to make a boxplot with temporal data. I used the timeUnit functionality to check for seasonality. I made the plot using the code below.

alt.Chart(data.reset_index()).mark_boxplot().encode(
    x=alt.X('DATE:T',timeUnit='month'),
    y='Sales')

The whiskers are working for regular quantitative data.

alt.Chart(data.reset_index()).mark_boxplot().encode(x='Sales:Q')

[jakevdp]

Please include a full code snippet that reproduces the issue. When I run yours I get NameError: name 'data' is not defined

[mattijn]

Probably related to this unresolved Vega-Lite issue upstream: vega/vega-lite#4925

[benjcabalona1029]

Hi Jake,

from vega_datasets import data
import altair as alt
alt.data_transformers.enable('json')
temps = data.seattle_temps()

alt.Chart(temps).mark_boxplot().encode(
    x=alt.X('date:T',timeUnit='month'),
    y='temp')

But as mentioned above this might be a Vega Lite Issue.

[joelostblom]

The provided example is working for me on Altair 4.2.0 (with the data_server data transformer and by disabling max rows), so I'm closing this, please re-open if you are still seeing the issue.