wave-blog/using-jupyter/short.signal.kt

wave-blog:using-jupyter:short.signal.kt

val o = (880.sine() + 440.sine() + 220.sine())
    .trim(1000, MILLISECONDS)

val values = o.asSequence(44100.0f)
    .drop(500)
    .take(400)
    .map { it.asDouble() }
    .toList()
    
val values2 = o.asSequence(44100.0f)
    .drop(510)
    .take(400)
    .map { it.asDouble() }
    .toList() 

val dataFrame = mapOf(
    "index" to (0 until values.size).toList(),
    "value" to values
)
val dataFrame2 = mapOf(
    "index" to (0 until values2.size).toList(),
    "value" to values2
)

lets_plot() { x = "index"; y = "value" } + 
    geom_line(dataFrame, color = "blue") + 
    geom_line(dataFrame2, color = "red")