Playing with layers, I can't find a reliable way to sort values y dimension by x ("b" field value).
I tried to configure "sort" field for "y" encoding, I get domainSortDropped error. That's OK, but maybe there's a way to avoid it somehow by "pre-sorting" values before channel creation?
If I pass sorted dataset manually, specifying "sort": null for "y" encoding, vega still sorts rows by "x" alphabetically. Am I doing something wrong? How can I get "descending bars" aka "waterfall" chart?
{
"width": 500,
"height": 300,
"data": {
"values": [
{
"a": "A",
"b": 70
},
{
"a": "Z",
"b": 50
},
{
"a": "B",
"b": 34
}
]
},
"layer": [
{
"mark": "bar",
"encoding": {
"y": {
"field": "a",
"type": "ordinal",
"sort": null
},
"x": {
"field": "b",
"type": "quantitative"
},
"color": {
"field": "a",
"type": "nominal"
}
}
},
{
"mark": "text",
"encoding": {
"y": {
"field": "a",
"type": "ordinal",
"sort": null
},
"text": {
"field": "b",
"type": "quantitative"
}
}
}
]
}
This looks like a bug to me. I'm looking into it at https://github.com/vega/vega-lite/issues/3215.