seriesType

Specifies the data series representation layout on the plot area:

dataSeries: [
    {
        seriesType: "line",                    
        collectionAlias: "Average daily temperature",
        data: [123.4, 71.5, 106.4, 144.0, 176.0, 135.6, 148.5, 54.4]
    }
]

This setting is demonstrated in the following example.
All series types are listed here.