Python theano._asarray方法代碼示例

本文整理匯總了Python中theano._asarray方法的典型用法代碼示例。如果您正苦於以下問題：Python theano._asarray方法的具體用法？Python theano._asarray怎麽用？Python theano._asarray使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類theano的用法示例。

在下文中一共展示了theano._asarray方法的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。

示例1: c_code

# 需要導入模塊: import theano [as 別名]
# 或者: from theano import _asarray [as 別名]
def c_code(self, node, name, inp, out, sub):
        x, = inp
        z, = out
        # These constants were obtained by looking at the output of
        # python commands like:
        #  for i in xrange(750):
        #      print i, repr(numpy.log1p(numpy.exp(theano._asarray([i,-i], dtype=dt))))
        # the boundary checks prevent us from generating inf

        # float16 limits: -17.0, 6.0
        # We use the float32 limits for float16 for now as the
        # computation will happend in float32 anyway.
        if (node.inputs[0].type == scalar.float32 or
                node.inputs[0].type == scalar.float16):
            return """%(z)s = %(x)s < -103.0f ? 0.0 : %(x)s > 14.0f ? %(x)s : log1p(exp(%(x)s));""" % locals()
        elif node.inputs[0].type == scalar.float64:
            return """%(z)s = %(x)s < -745.0 ? 0.0 : %(x)s > 16.0 ? %(x)s : log1p(exp(%(x)s));""" % locals()
        else:
            raise NotImplementedError('only floatingpoint is implemented')

開發者ID:muhanzhang，項目名稱:D-VAE，代碼行數:21，代碼來源:sigm.py

示例2: test_givens

# 需要導入模塊: import theano [as 別名]
# 或者: from theano import _asarray [as 別名]
def test_givens(self):
        x = shared(0)
        assign = pfunc([], x, givens={x: 3})
        assert assign() == 3
        assert x.get_value(borrow=True) == 0

        y = tensor.ivector()
        f = pfunc([y], (y * x), givens={x: 6})
        assert numpy.all(f([1, 1, 1]) == [6, 6, 6])
        assert x.get_value() == 0

        z = tensor.ivector()
        c = z * y
        f = pfunc([y], (c + 7),
                  givens={z: theano._asarray([4, 4, 4], dtype='int32')})
        assert numpy.all(f([1, 1, 1]) == [11, 11, 11])
        assert x.get_value() == 0

開發者ID:muhanzhang，項目名稱:D-VAE，代碼行數:19，代碼來源:test_pfunc.py

示例3: test_host_to_device

# 需要導入模塊: import theano [as 別名]
# 或者: from theano import _asarray [as 別名]
def test_host_to_device():
    #print >>sys.stdout, 'starting test_host_to_dev'
    for shape in ((), (3,), (2, 3), (3, 4, 5, 6)):
        a = theano._asarray(numpy.random.rand(*shape), dtype='float32')
        b = cuda_ndarray.CudaNdarray(a)
        c = numpy.asarray(b)
        assert numpy.all(a == c)

        # test with float32 dtype
        d = numpy.asarray(b, dtype='float32')
        assert numpy.all(a == d)

        # test with not float32 dtype
        try:
            numpy.asarray(b, dtype='int8')
            assert False
        except TypeError:
            pass

開發者ID:muhanzhang，項目名稱:D-VAE，代碼行數:20，代碼來源:test_cuda_ndarray.py