本文整理汇总了Python中sam.putarray函数的典型用法代码示例。如果您正苦于以下问题：Python putarray函数的具体用法？Python putarray怎么用？Python putarray使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了putarray函数的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: run_once
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2: run_once
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3: run_once_xv
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4: draw_contour_xv
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5: draw_contour
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6: draw_contour
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7: draw_contour_xy
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8: dot
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