func main() {
flag.Parse()
reftest := flag.NFlag() > 0
x := floorplan(matrix.FloatWithValue(5, 1, 100.0))
if x != nil {
W := x.Get(0)
H := x.Get(1)
xs := matrix.FloatVector(x.FloatArray()[2:7])
ys := matrix.FloatVector(x.FloatArray()[7:12])
ws := matrix.FloatVector(x.FloatArray()[12:17])
hs := matrix.FloatVector(x.FloatArray()[17:])
fmt.Printf("W = %.5f, H = %.5f\n", W, H)
fmt.Printf("x = \n%v\n", xs.ToString("%.5f"))
fmt.Printf("y = \n%v\n", ys.ToString("%.5f"))
fmt.Printf("w = \n%v\n", ws.ToString("%.5f"))
fmt.Printf("h = \n%v\n", hs.ToString("%.5f"))
if reftest {
check(x)
}
}
}
func main() {
Sdata := [][]float64{
[]float64{ 4e-2, 6e-3, -4e-3, 0.0 },
[]float64{ 6e-3, 1e-2, 0.0, 0.0 },
[]float64{-4e-3, 0.0, 2.5e-3, 0.0 },
[]float64{ 0.0, 0.0, 0.0, 0.0 }}
pbar := matrix.FloatVector([]float64{.12, .10, .07, .03})
S := matrix.FloatMatrixStacked(Sdata)
n := pbar.Rows()
G := matrix.FloatDiagonal(n, -1.0)
h := matrix.FloatZeros(n, 1)
A := matrix.FloatWithValue(1, n, 1.0)
b := matrix.FloatNew(1,1, []float64{1.0})
var solopts cvx.SolverOptions
solopts.MaxIter = 30
solopts.ShowProgress = true
mu := 1.0
Smu := S.Copy().Scale(mu)
pbarNeg := pbar.Copy().Scale(-1.0)
fmt.Printf("Smu=\n%v\n", Smu.String())
fmt.Printf("-pbar=\n%v\n", pbarNeg.String())
sol, err := cvx.Qp(Smu, pbarNeg, G, h, A, b, &solopts, nil)
fmt.Printf("status: %v\n", err)
if sol != nil && sol.Status == cvx.Optimal {
x := sol.Result.At("x")[0]
ret := blas.DotFloat(x, pbar)
risk := math.Sqrt(blas.DotFloat(x, S.Times(x)))
fmt.Printf("ret=%.3f, risk=%.3f\n", ret, risk)
fmt.Printf("x=\n%v\n", x)
}
}