Python putarray示例

示例#1

文件： sam_cg_rosenbrock.py 项目： shirangi/mystic

def run_once(x0, x1):
    sol = fmin_cg(rosen, [x0, x1], retall=True, full_output=1)
    xy = numpy.asarray(sol[-1])
    sam.putarray('xy', xy)
    sam.eval("plot(xy(:,1),xy(:,2),'w-','LineWidth',2)")
    sam.eval("plot(xy(:,1),xy(:,2),'wo','MarkerSize',6)")
    return sol

示例#2

def run_once(x0,x1):
    sol = fmin_cg(rosen, [x0, x1], retall = True, full_output=1)
    xy = numpy.asarray(sol[-1])
    sam.putarray('xy',xy)
    sam.eval("plot(xy(:,1),xy(:,2),'w-','LineWidth',2)")
    sam.eval("plot(xy(:,1),xy(:,2),'wo','MarkerSize',6)")
    return sol

示例#3

文件： sam_corana2.py 项目： jcfr/mystic

def run_once():
    simplex = Monitor()
    solver = fmin(2)
    solver.SetRandomInitialPoints([0,0],[2,2])
    solver.SetGenerationMonitor(simplex)
    solver.Solve(Corana2, termination=CRT())
    sol = solver.Solution()
    
    for x in simplex.x:
        sam.putarray('x',x)
        sam.eval("plot(x([1,2,3,1],1),x([1,2,3,1],2),'w-')")

示例#4

文件： sam_zimmermann.py 项目： yinhao1501/mystic

def run_once():
    simplex = Monitor()
    solver = fmin(2)
    solver.SetRandomInitialPoints([0, 0], [7, 7])
    solver.SetGenerationMonitor(simplex)
    solver.Solve(CostFunction, termination=CRT())
    sol = solver.Solution()

    for x in simplex.x:
        sam.putarray('x', x)
        sam.eval("plot(x([1,2,3,1],1),x([1,2,3,1],2),'k-')")

示例#5

def run_once(x0, x1):
    simplex = Monitor()
    xinit = [x0, x1]

    solver = fmin(len(xinit))
    solver.SetInitialPoints(xinit)
    solver.SetGenerationMonitor(simplex)
    solver.Solve(rosen, termination=CRT())
    sol = solver.Solution()

    for x in simplex.x:
        sam.putarray('x', x)
        sam.eval("plot(x([1,2,3,1],1),x([1,2,3,1],2),'w-')")

示例#6

文件： sam_rosenbrock.py 项目： Magellen/mystic

def run_once(x0,x1):
    simplex = Monitor()
    xinit = [x0, x1]

    solver = fmin(len(xinit))
    solver.SetInitialPoints(xinit)
    solver.SetGenerationMonitor(simplex)
    solver.Solve(rosen, termination=CRT())
    sol = solver.Solution()
    
    for x in simplex.x:
        sam.putarray('x',x)
        sam.eval("plot(x([1,2,3,1],1),x([1,2,3,1],2),'w-')")

示例#7

文件： sam_mogi.py 项目： resurgo-genetics/mystic

def run_once_xv():
    simplex = Monitor()
    y1 = y0*random.uniform(0.5,1.5)
    z1 = z0*random.uniform(0.5,1.5)
    xinit = [random.uniform(x0-40,x0+40), y1, z1, random.uniform(v0-0.1,v0+0.1)]

    solver = fmin(len(xinit))
    solver.SetInitialPoints(xinit)
    solver.SetGenerationMonitor(simplex)
    solver.Solve(cost_function, termination=CRT())
    sol = solver.Solution()
    print(sol)

    for x in simplex.x:
        sam.putarray('x',x)
        sam.eval("plot(x([1,2,3,1],1),x([1,2,3,1],2),'w-','LineWidth',2)")
    return sol

示例#8

文件： sam_zimmermann.py 项目： yinhao1501/mystic

def draw_contour():
    import numpy

    x, y = numpy.mgrid[0:7.5:0.05, 0:7.5:0.05]
    c = 0 * x
    s, t = x.shape
    for i in range(s):
        for j in range(t):
            xx, yy = x[i, j], y[i, j]
            c[i, j] = CostFunction([xx, yy])

    sam.putarray('X', x)
    sam.putarray('Y', y)
    sam.putarray('C', c)

    sam.verbose()
    sam.eval("[c,h]=contourf(X,Y,log(C*20+1)+2,100);set(h,'EdgeColor','none')")
    sam.eval("title('Zimmermann''s Corner. Min at 7,2')")
    sam.eval('hold on')

示例#9

def draw_contour_xv():
    import numpy
    x, y = mgrid[-40:40:0.5, -0.1:0.3:.01]
    x = x0 + x
    y = v0 + y
    s, t = x.shape
    c = 0 * x
    s, t = x.shape
    for i in range(s):
        for j in range(t):
            xx, yy = x[i, j], y[i, j]
            c[i, j] = cost_function([xx, y0, z0, yy])

    sam.putarray('X', x)
    sam.putarray('Y', y)
    sam.putarray('C', c)

    sam.eval("[c,h]=contourf(X,Y,C,100);set(h,'EdgeColor','none')")
    sam.eval('hold on')

示例#10

文件： sam_mogi.py 项目： Magellen/mystic

def draw_contour_xv():
    import numpy
    x, y = mgrid[-40:40:0.5, -0.1:0.3:.01]
    x = x0 + x
    y = v0 + y
    s,t = x.shape
    c = 0*x
    s,t = x.shape
    for i in range(s):
       for j in range(t):
          xx,yy = x[i,j], y[i,j]
          c[i,j] = cost_function([xx, y0, z0, yy])

    sam.putarray('X',x)
    sam.putarray('Y',y)
    sam.putarray('C',c)

    sam.eval("[c,h]=contourf(X,Y,C,100);set(h,'EdgeColor','none')")
    sam.eval('hold on')

示例#11

文件： sam_cg_rosenbrock.py 项目： shirangi/mystic

def draw_contour():
    import numpy

    x, y = numpy.mgrid[0:2.1:0.02, 0:2.1:0.02]
    c = 0 * x
    s, t = x.shape
    for i in range(s):
        for j in range(t):
            xx, yy = x[i, j], y[i, j]
            c[i, j] = rosen([xx, yy])

    sam.putarray('X', x)
    sam.putarray('Y', y)
    sam.putarray('C', c)

    sam.verbose()
    #sam.eval("[c,h]=contourf(X,Y,C,60);set(h,'EdgeColor','none')")
    sam.eval("[c,h]=contourf(X,Y,log(C*20+1)+2,60);set(h,'EdgeColor','none')")
    sam.eval("title('Rosenbrock''s function in 2D. Min at 1,1')")
    sam.eval('hold on')

示例#12

def draw_contour():
    import numpy

    x, y = numpy.mgrid[0:2.1:0.05, 0:2.1:0.05]
    c = 0 * x
    s, t = x.shape
    for i in range(s):
        for j in range(t):
            xx, yy = x[i, j], y[i, j]
            c[i, j] = Corana2([xx, yy])

    sam.putarray('X', x)
    sam.putarray('Y', y)
    sam.putarray('C', c)

    sam.verbose()
    sam.eval("[c,h]=contourf(X,Y,C,100);set(h,'EdgeColor','none')")
    #sam.eval("[c,h]=contourf(X,Y,log(C*20+1)+2,100);set(h,'EdgeColor','none')")
    sam.eval("title('Corana''s Parabola in 2D. Min at 0,0')")
    sam.eval('hold on')

示例#13

文件： sam_zimmermann.py 项目： cdeil/mystic

def draw_contour():
    import numpy

    x, y = numpy.mgrid[0:7.5:0.05,0:7.5:0.05]
    c = 0*x
    s,t = x.shape
    for i in range(s):
       for j in range(t):
          xx,yy = x[i,j], y[i,j]
          c[i,j] = CostFunction([xx,yy])


    sam.putarray('X',x)
    sam.putarray('Y',y)
    sam.putarray('C',c)

    sam.verbose()    
    sam.eval("[c,h]=contourf(X,Y,log(C*20+1)+2,100);set(h,'EdgeColor','none')")
    sam.eval("title('Zimmermann''s Corner. Min at 7,2')")
    sam.eval('hold on')

示例#14

文件： sam_corana2.py 项目： jcfr/mystic

def draw_contour():
    import numpy

    x, y = numpy.mgrid[0:2.1:0.05,0:2.1:0.05]
    c = 0*x
    s,t = x.shape
    for i in range(s):
       for j in range(t):
          xx,yy = x[i,j], y[i,j]
          c[i,j] = Corana2([xx,yy])


    sam.putarray('X',x)
    sam.putarray('Y',y)
    sam.putarray('C',c)

    sam.verbose()    
    sam.eval("[c,h]=contourf(X,Y,C,100);set(h,'EdgeColor','none')")
    #sam.eval("[c,h]=contourf(X,Y,log(C*20+1)+2,100);set(h,'EdgeColor','none')")
    sam.eval("title('Corana''s Parabola in 2D. Min at 0,0')")
    sam.eval('hold on')

示例#15

def draw_contour_xy():
    import numpy
    x, y = mgrid[-40:40:0.5, -40:40:0.5]
    x = x0 + x
    y = y0 + y
    s, t = x.shape
    c = 0 * x
    s, t = x.shape
    for i in range(s):
        for j in range(t):
            xx, yy = x[i, j], y[i, j]
            c[i, j] = cost_function([xx, yy, z0, v0])

    sam.putarray('X', x)
    sam.putarray('Y', y)
    sam.putarray('C', c)

    sam.verbose()
    sam.eval("[c,h]=contourf(X,Y,C,100);set(h,'EdgeColor','none')")
    sam.eval("title('Mogi Fitting')")
    sam.eval('hold on')

示例#16

def draw_contour():
    import numpy

    x, y = numpy.mgrid[0:2.1:0.02,0:2.1:0.02]
    c = 0*x
    s,t = x.shape
    for i in range(s):
       for j in range(t):
          xx,yy = x[i,j], y[i,j]
          c[i,j] = rosen([xx,yy])


    sam.putarray('X',x)
    sam.putarray('Y',y)
    sam.putarray('C',c)

    sam.verbose()    
    #sam.eval("[c,h]=contourf(X,Y,C,60);set(h,'EdgeColor','none')")
    sam.eval("[c,h]=contourf(X,Y,log(C*20+1)+2,60);set(h,'EdgeColor','none')")
    sam.eval("title('Rosenbrock''s function in 2D. Min at 1,1')")
    sam.eval('hold on')

示例#17

文件： sam_mogi.py 项目： Magellen/mystic

def draw_contour_xy():
    import numpy
    x, y = mgrid[-40:40:0.5, -40:40:0.5]
    x = x0 + x
    y = y0 + y
    s,t = x.shape
    c = 0*x
    s,t = x.shape
    for i in range(s):
       for j in range(t):
          xx,yy = x[i,j], y[i,j]
          c[i,j] = cost_function([xx,yy, z0, v0])


    sam.putarray('X',x)
    sam.putarray('Y',y)
    sam.putarray('C',c)

    sam.verbose()    
    sam.eval("[c,h]=contourf(X,Y,C,100);set(h,'EdgeColor','none')")
    sam.eval("title('Mogi Fitting')")
    sam.eval('hold on')

示例#18

from test_circle import sv, xy, x0, y0, R0
import sam

# The dual problem verification begins here.
npt = xy.shape[0]
Q = dot(xy, transpose(xy))
#Q = zeros((npt,npt))
#for i in range(npt):
#   for j in range(npt):
##       Q[i,j] = dot(xy[i,:],xy[j,:])
#Q = array(Q)
f = -diag(Q)+10
H = Q*2
A = ones((1,npt))
b = ones(1)
sam.putarray('H',H);
sam.putarray('f',f);
sam.eval("npt = %d;" % npt);
sam.eval("al = quadprog(H,f,[],[],ones(1,npt),1,zeros(npt,1),ones(npt,1));")
alpha = sam.getarray('al').flatten()


def getobj(H,f, x):
    return 0.5 * dot(dot(x,H),x) + dot(f,x)

def chop(x):
    if abs(x) > 1e-6:
        return x
    else:
        return 0

示例#19

from test_circle import sv, xy, x0, y0, R0
import sam

# The dual problem verification begins here.
npt = xy.shape[0]
Q = dot(xy, transpose(xy))
#Q = zeros((npt,npt))
#for i in range(npt):
#   for j in range(npt):
##       Q[i,j] = dot(xy[i,:],xy[j,:])
#Q = array(Q)
f = -diag(Q) + 10
H = Q * 2
A = ones((1, npt))
b = ones(1)
sam.putarray('H', H)
sam.putarray('f', f)
sam.eval("npt = %d;" % npt)
sam.eval("al = quadprog(H,f,[],[],ones(1,npt),1,zeros(npt,1),ones(npt,1));")
alpha = sam.getarray('al').flatten()


def getobj(H, f, x):
    return 0.5 * dot(dot(x, H), x) + dot(f, x)


def chop(x):
    if abs(x) > 1e-6:
        return x
    else:
        return 0