Line Gradient

val monthTemp = dataFrameOf("month", "temp")(
    "January", -5,
    "February", -3,
    "March", 2,
    "April", 10,
    "May", 16,
    "June", 20,
    "July", 22,
    "August", 21,
    "September", 15,
    "October", 9,
    "November", 3,
    "December", -2
)

monthTemp.plot {
    line {
        x("month")
        y("temp") {
            scale = continuous(-10..25) // axis scale
        }
        color("temp") {
            scale = continuous(Color.BLUE..Color.RED)
        }
        width = 3.0
    }
}

val monthTemp = mapOf(
    "month" to listOf(
        "January", "February",
        "March", "April", "May",
        "June", "July", "August",
        "September", "October", "November",
        "December"
    ),
    "temp" to listOf(-5, -3, 2, 10, 16, 20, 22, 21, 15, 9, 3, -2)
)

monthTemp.plot {
    line {
        x("month")
        y("temp") {
            scale = continuous(-10..25) // axis scale
        }
        color("temp") {
            scale = continuous(Color.BLUE..Color.RED)
        }
        width = 3.0
    }
}