how to filter in [vega-lite]

Community Help
1

Just one more for today, I promise!

Now in, SQL it would look like this:

SELECT dateA, COUNT(*) as numDisco FROM ks_table
WHERE shoes != ''
GROUP BY dateA

but how do I do this in vega-lite?
I’ve tried

data(rawdatanow)
.transform(
vl.filter({“datum”:[‘shoes’]} == 1),
)

and

vl.joinaggregate(vl.sum().field(‘shoes’).as(‘numDisco’)).groupby(‘dateA’)

with no luck. Help?

2

Sorry I meant to answer this question with the response to my other question. Found the solution and the following works:

vl.filter(“datum.discharged == 1”),