Hi, Trying to implement dynamic color scale type using parameter but it's working. Tryed all different ways using "expr' and "param". When I hard code quantile or linear it works. Please help. Below is my code...
{
"height": 400,
"data": {"name": "dataset"},
"params": [
{
"name": "Button",
"value": "quantile",
"bind": {
"input": "radio",
"options": [
"quantile",
"linear"
]
}
},
{
"name": "selectDate",
"select": {
"type": "interval",
"encodings": ["x"]
}
}
],
"layer": [
{
"mark": {
"type": "bar",
"stroke": "black",
"offset": 250
},
"encoding": {
"x": {
"bin": {
"maxbins": 220,
"minstep": 1
},
"field": "in Euro",
"type": "quantitative",
"axis": {
"orient": "top",
"title": null,
"offset": 0
}
},
"y": {
"aggregate": "count",
"axis": null,
"scale": {"reverse": true}
},
"color": {
"value": "lightgray",
"legend": null,
"condition": {
"test": {
"param": "selectDate"
},
"field": "in Euro",
"type": "quantitative",
"scale": {
"scheme": "spectral",
"type": {
"expr": "Button === 'quantile' ? 'quantile' : 'linear'"
}
}
}
},
"tooltip": {
"field": "Region",
"type": "nominal"
}
}
}
]
}
