Python polynomial.polyval方法代碼示例

本文整理匯總了Python中numpy.polynomial.polynomial.polyval方法的典型用法代碼示例。如果您正苦於以下問題：Python polynomial.polyval方法的具體用法？Python polynomial.polyval怎麽用？Python polynomial.polyval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numpy.polynomial.polynomial的用法示例。

在下文中一共展示了polynomial.polyval方法的14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: test_hermeval

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def test_hermeval(self):
        #check empty input
        assert_equal(herme.hermeval([], [1]).size, 0)

        #check normal input)
        x = np.linspace(-1, 1)
        y = [polyval(x, c) for c in Helist]
        for i in range(10):
            msg = "At i=%d" % i
            tgt = y[i]
            res = herme.hermeval(x, [0]*i + [1])
            assert_almost_equal(res, tgt, err_msg=msg)

        #check that shape is preserved
        for i in range(3):
            dims = [2]*i
            x = np.zeros(dims)
            assert_equal(herme.hermeval(x, [1]).shape, dims)
            assert_equal(herme.hermeval(x, [1, 0]).shape, dims)
            assert_equal(herme.hermeval(x, [1, 0, 0]).shape, dims)

開發者ID:Frank-qlu，項目名稱:recruit，代碼行數:22，代碼來源:test_hermite_e.py

示例2: test_chebval

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def test_chebval(self):
        #check empty input
        assert_equal(cheb.chebval([], [1]).size, 0)

        #check normal input)
        x = np.linspace(-1, 1)
        y = [polyval(x, c) for c in Tlist]
        for i in range(10):
            msg = "At i=%d" % i
            tgt = y[i]
            res = cheb.chebval(x, [0]*i + [1])
            assert_almost_equal(res, tgt, err_msg=msg)

        #check that shape is preserved
        for i in range(3):
            dims = [2]*i
            x = np.zeros(dims)
            assert_equal(cheb.chebval(x, [1]).shape, dims)
            assert_equal(cheb.chebval(x, [1, 0]).shape, dims)
            assert_equal(cheb.chebval(x, [1, 0, 0]).shape, dims)

開發者ID:Frank-qlu，項目名稱:recruit，代碼行數:22，代碼來源:test_chebyshev.py

示例3: test_lagval

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def test_lagval(self):
        #check empty input
        assert_equal(lag.lagval([], [1]).size, 0)

        #check normal input)
        x = np.linspace(-1, 1)
        y = [polyval(x, c) for c in Llist]
        for i in range(7):
            msg = "At i=%d" % i
            tgt = y[i]
            res = lag.lagval(x, [0]*i + [1])
            assert_almost_equal(res, tgt, err_msg=msg)

        #check that shape is preserved
        for i in range(3):
            dims = [2]*i
            x = np.zeros(dims)
            assert_equal(lag.lagval(x, [1]).shape, dims)
            assert_equal(lag.lagval(x, [1, 0]).shape, dims)
            assert_equal(lag.lagval(x, [1, 0, 0]).shape, dims)

開發者ID:Frank-qlu，項目名稱:recruit，代碼行數:22，代碼來源:test_laguerre.py

示例4: test_polyval

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def test_polyval(self):
        #check empty input
        assert_equal(poly.polyval([], [1]).size, 0)

        #check normal input)
        x = np.linspace(-1, 1)
        y = [x**i for i in range(5)]
        for i in range(5):
            tgt = y[i]
            res = poly.polyval(x, [0]*i + [1])
            assert_almost_equal(res, tgt)
        tgt = x*(x**2 - 1)
        res = poly.polyval(x, [0, -1, 0, 1])
        assert_almost_equal(res, tgt)

        #check that shape is preserved
        for i in range(3):
            dims = [2]*i
            x = np.zeros(dims)
            assert_equal(poly.polyval(x, [1]).shape, dims)
            assert_equal(poly.polyval(x, [1, 0]).shape, dims)
            assert_equal(poly.polyval(x, [1, 0, 0]).shape, dims)

開發者ID:Frank-qlu，項目名稱:recruit，代碼行數:24，代碼來源:test_polynomial.py

示例5: test_polyvander

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def test_polyvander(self):
        # check for 1d x
        x = np.arange(3)
        v = poly.polyvander(x, 3)
        assert_(v.shape == (3, 4))
        for i in range(4):
            coef = [0]*i + [1]
            assert_almost_equal(v[..., i], poly.polyval(x, coef))

        # check for 2d x
        x = np.array([[1, 2], [3, 4], [5, 6]])
        v = poly.polyvander(x, 3)
        assert_(v.shape == (3, 2, 4))
        for i in range(4):
            coef = [0]*i + [1]
            assert_almost_equal(v[..., i], poly.polyval(x, coef))

開發者ID:Frank-qlu，項目名稱:recruit，代碼行數:18，代碼來源:test_polynomial.py

示例6: test_hermval

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def test_hermval(self):
        #check empty input
        assert_equal(herm.hermval([], [1]).size, 0)

        #check normal input)
        x = np.linspace(-1, 1)
        y = [polyval(x, c) for c in Hlist]
        for i in range(10):
            msg = "At i=%d" % i
            tgt = y[i]
            res = herm.hermval(x, [0]*i + [1])
            assert_almost_equal(res, tgt, err_msg=msg)

        #check that shape is preserved
        for i in range(3):
            dims = [2]*i
            x = np.zeros(dims)
            assert_equal(herm.hermval(x, [1]).shape, dims)
            assert_equal(herm.hermval(x, [1, 0]).shape, dims)
            assert_equal(herm.hermval(x, [1, 0, 0]).shape, dims)

開發者ID:Frank-qlu，項目名稱:recruit，代碼行數:22，代碼來源:test_hermite.py

示例7: _campos_zeros

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def _campos_zeros(n):
    """
    Return approximate zero locations of Bessel polynomials y_n(x) for order
    `n` using polynomial fit (Campos-Calderon 2011)
    """
    if n == 1:
        return asarray([-1+0j])

    s = npp_polyval(n, [0, 0, 2, 0, -3, 1])
    b3 = npp_polyval(n, [16, -8]) / s
    b2 = npp_polyval(n, [-24, -12, 12]) / s
    b1 = npp_polyval(n, [8, 24, -12, -2]) / s
    b0 = npp_polyval(n, [0, -6, 0, 5, -1]) / s

    r = npp_polyval(n, [0, 0, 2, 1])
    a1 = npp_polyval(n, [-6, -6]) / r
    a2 = 6 / r

    k = np.arange(1, n+1)
    x = npp_polyval(k, [0, a1, a2])
    y = npp_polyval(k, [b0, b1, b2, b3])

    return x + 1j*y

開發者ID:ryfeus，項目名稱:lambda-packs，代碼行數:25，代碼來源:filter_design.py

示例8: test_hermeval

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def test_hermeval(self) :
        #check empty input
        assert_equal(herme.hermeval([], [1]).size, 0)

        #check normal input)
        x = np.linspace(-1, 1)
        y = [polyval(x, c) for c in Helist]
        for i in range(10) :
            msg = "At i=%d" % i
            ser = np.zeros
            tgt = y[i]
            res = herme.hermeval(x, [0]*i + [1])
            assert_almost_equal(res, tgt, err_msg=msg)

        #check that shape is preserved
        for i in range(3) :
            dims = [2]*i
            x = np.zeros(dims)
            assert_equal(herme.hermeval(x, [1]).shape, dims)
            assert_equal(herme.hermeval(x, [1, 0]).shape, dims)
            assert_equal(herme.hermeval(x, [1, 0, 0]).shape, dims)

開發者ID:ktraunmueller，項目名稱:Computable，代碼行數:23，代碼來源:test_hermite_e.py

示例9: test_chebval

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def test_chebval(self) :
        #check empty input
        assert_equal(cheb.chebval([], [1]).size, 0)

        #check normal input)
        x = np.linspace(-1, 1)
        y = [polyval(x, c) for c in Tlist]
        for i in range(10) :
            msg = "At i=%d" % i
            tgt = y[i]
            res = cheb.chebval(x, [0]*i + [1])
            assert_almost_equal(res, tgt, err_msg=msg)

        #check that shape is preserved
        for i in range(3) :
            dims = [2]*i
            x = np.zeros(dims)
            assert_equal(cheb.chebval(x, [1]).shape, dims)
            assert_equal(cheb.chebval(x, [1, 0]).shape, dims)
            assert_equal(cheb.chebval(x, [1, 0, 0]).shape, dims)

開發者ID:ktraunmueller，項目名稱:Computable，代碼行數:22，代碼來源:test_chebyshev.py

示例10: test_lagval

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def test_lagval(self) :
        #check empty input
        assert_equal(lag.lagval([], [1]).size, 0)

        #check normal input)
        x = np.linspace(-1, 1)
        y = [polyval(x, c) for c in Llist]
        for i in range(7) :
            msg = "At i=%d" % i
            ser = np.zeros
            tgt = y[i]
            res = lag.lagval(x, [0]*i + [1])
            assert_almost_equal(res, tgt, err_msg=msg)

        #check that shape is preserved
        for i in range(3) :
            dims = [2]*i
            x = np.zeros(dims)
            assert_equal(lag.lagval(x, [1]).shape, dims)
            assert_equal(lag.lagval(x, [1, 0]).shape, dims)
            assert_equal(lag.lagval(x, [1, 0, 0]).shape, dims)

開發者ID:ktraunmueller，項目名稱:Computable，代碼行數:23，代碼來源:test_laguerre.py

示例11: test_polyval

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def test_polyval(self) :
        #check empty input
        assert_equal(poly.polyval([], [1]).size, 0)

        #check normal input)
        x = np.linspace(-1, 1)
        y = [x**i for i in range(5)]
        for i in range(5) :
            tgt = y[i]
            res = poly.polyval(x, [0]*i + [1])
            assert_almost_equal(res, tgt)
        tgt = x*(x**2 - 1)
        res = poly.polyval(x, [0, -1, 0, 1])
        assert_almost_equal(res, tgt)

        #check that shape is preserved
        for i in range(3) :
            dims = [2]*i
            x = np.zeros(dims)
            assert_equal(poly.polyval(x, [1]).shape, dims)
            assert_equal(poly.polyval(x, [1, 0]).shape, dims)
            assert_equal(poly.polyval(x, [1, 0, 0]).shape, dims)

開發者ID:ktraunmueller，項目名稱:Computable，代碼行數:24，代碼來源:test_polynomial.py

示例12: test_polyvander

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def test_polyvander(self) :
        # check for 1d x
        x = np.arange(3)
        v = poly.polyvander(x, 3)
        assert_(v.shape == (3, 4))
        for i in range(4) :
            coef = [0]*i + [1]
            assert_almost_equal(v[..., i], poly.polyval(x, coef))

        # check for 2d x
        x = np.array([[1, 2], [3, 4], [5, 6]])
        v = poly.polyvander(x, 3)
        assert_(v.shape == (3, 2, 4))
        for i in range(4) :
            coef = [0]*i + [1]
            assert_almost_equal(v[..., i], poly.polyval(x, coef))

開發者ID:ktraunmueller，項目名稱:Computable，代碼行數:18，代碼來源:test_polynomial.py

示例13: test_legval

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def test_legval(self) :
        #check empty input
        assert_equal(leg.legval([], [1]).size, 0)

        #check normal input)
        x = np.linspace(-1, 1)
        y = [polyval(x, c) for c in Llist]
        for i in range(10) :
            msg = "At i=%d" % i
            ser = np.zeros
            tgt = y[i]
            res = leg.legval(x, [0]*i + [1])
            assert_almost_equal(res, tgt, err_msg=msg)

        #check that shape is preserved
        for i in range(3) :
            dims = [2]*i
            x = np.zeros(dims)
            assert_equal(leg.legval(x, [1]).shape, dims)
            assert_equal(leg.legval(x, [1, 0]).shape, dims)
            assert_equal(leg.legval(x, [1, 0, 0]).shape, dims)

開發者ID:ktraunmueller，項目名稱:Computable，代碼行數:23，代碼來源:test_legendre.py

示例14: test_hermval

# 需要導入模塊: from numpy.polynomial import polynomial [as 別名]
# 或者: from numpy.polynomial.polynomial import polyval [as 別名]
def test_hermval(self) :
        #check empty input
        assert_equal(herm.hermval([], [1]).size, 0)

        #check normal input)
        x = np.linspace(-1, 1)
        y = [polyval(x, c) for c in Hlist]
        for i in range(10) :
            msg = "At i=%d" % i
            ser = np.zeros
            tgt = y[i]
            res = herm.hermval(x, [0]*i + [1])
            assert_almost_equal(res, tgt, err_msg=msg)

        #check that shape is preserved
        for i in range(3) :
            dims = [2]*i
            x = np.zeros(dims)
            assert_equal(herm.hermval(x, [1]).shape, dims)
            assert_equal(herm.hermval(x, [1, 0]).shape, dims)
            assert_equal(herm.hermval(x, [1, 0, 0]).shape, dims)

開發者ID:ktraunmueller，項目名稱:Computable，代碼行數:23，代碼來源:test_hermite.py

注：本文中的numpy.polynomial.polynomial.polyval方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。