Repository navigation
Ordering of columns in FacetChart #3481
Description
What happened?
I've been trying to lay out a chart with rows and columns where some of the values are missing, and ran into the problem of sort argument to alt.Column not working as expected.
without sorting
df = pd.DataFrame({
'row': [1,1,1,2,2],
'column': list('ABCAB'),
'x': [1,2,3,4,5],
'y': [1,2,3,4,5],
})
alt.Chart(df).mark_circle().encode(
x='x',
y='y',
row='row',
column=alt.Column('column')
).properties(width=120, height=80)
with sorting - incorrect order
alt.Chart(df).mark_circle().encode(
x='x',
y='y',
row='row',
column=alt.Column('column', sort=list('ABC'))
).properties(width=120, height=80)
Why would the bottom row shift? Is it a bug?
What would you like to happen instead?
proper sorting
Which version of Altair are you using?
5.3.0
Activity
joelostblom commentedon Jul 17, 2024
This looks like it could be due to the underlying Vega-Lite issue, probably this one vega/vega-lite#8675. Feel free to add your example there if you think it is the same issue or comment here if it isn't and we can troubleshoot further here.
liquidcarbon commentedon Jul 17, 2024
Thanks for your response.
One common theme between the calendar example in vega/vega-lite#8675, this toy example here, and the real thing I was trying to do:
Within the row with missing columns, the remaining values are pushed to the right. Very odd!
fix: facet missing data bug fix (vega#9818)