LeastChange

A UGen that switches between two input signal depending on which is changing less. Change is based on the absolute of the differentiation of the respective signals.

===Examples===

// mouse-x versus mouse-y
play {
 val x   = MouseX.kr(lag = 1)
 val y   = MouseY.kr(lag = 1)
 val c   = LeastChange.kr(x, y)
 val isX = c sig_== x
 val isY = 1 - isX
 // if X change weaker, modulate pan position
 val p   = LFTri.ar(c * 10 * isX)
 // if Y change weaker, modulate sine frequency
 val f   = LFTri.ar(c * 10 * isY).linExp(-1, 1, 100, 4000)
 // report current state
 c.poll(5, "c")
 x.poll(isX, "now X")
 y.poll(isY, "now Y")
 Pan2.ar(SinOsc.ar(f) * 0.1, p)
}