Contents

formRamp(withInitialValue:increment:result:)

Populates a double-precision vector with monotonically incrementing or decrementing values using an initial value and increment.

Declaration

static func formRamp<V>(withInitialValue initialValue: Double, increment: Double, result: inout V) where V : AccelerateMutableBuffer, V.Element == Double

Parameters

  • initialValue:

    The initial value of the ramp.

  • increment:

    The increment, or decrement if negative, between each generated element.

  • result:

    The array that receives the generated ramp.

Discussion

Use this function to generate and return a vector populated with ramped values.

The following code generates a ramped vector with values in the range 0 ... 7:

    let n = 8
    
    let ramp = [Double](unsafeUninitializedCapacity: n) {
        buffer, initializedCount in
        
        vDSP.formRamp(withInitialValue: 0, 
                      increment: 1,
                      result: &buffer)
        
        initializedCount = n
    }
    
    // Prints "[0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0]".
    print(ramp)

See Also

Type Methods