Please make sure the data are sorted.
You need to use .sorted(by: { } )
I encounted this problem before, you can see my code for understading.
Chart {
ForEach(bodydata.sorted(by: { $0.key.toDate2()! > $1.key.toDate2()! }), id:\.key) { key, value in
LineMark(
x: .value("Week Day", key.toDate2()!, unit: .day),
y: .value("HR", value.amount)
)
.interpolationMethod(.catmullRom)
.symbol() {
Rectangle()
.frame(width: 8, height: 8)
}
.symbolSize(30)
}
}
Stacieywp
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