Python Variable.name Examples

Example #1

def test__dot_var():
    x = Variable(np.random.randn(2, 3))
    x.name = 'x'
    assert _dot_var(x) == f'{id(x)} [label="x", color=orange, style=filled]\n'
    assert _dot_var(
        x, verbose=True
    ) == f'{id(x)} [label="x: (2, 3) float64", color=orange, style=filled]\n'

Example #2

File: test_second_order.py Project: centertong/dezero

    def test_tanh(self):
        x = Variable(np.array(1.0))
        y = F.tanh(x)
        x.name = 'x'
        y.name = 'y'
        y.backward(create_graph=True)

        iters = 0

        for i in range(iters):
            gx = x.grad
            x.cleargrad()
            gx.backward(create_graph=True)

        gx = x.grad
        gx.name = 'gx' + str(iters + 1)
        txt = get_dot_graph(gx)
        with open('test.dot', 'w') as f:
            f.write(txt)

Example #3

if '__file__' in globals():
    import os
    import sys
    sys.path.append(os.path.join(os.path.dirname(__file__), '..'))

import numpy as np
from dezero.utils import plot_dot_graph
from dezero import Variable
import dezero.functions as F

x = Variable(np.array(np.array(1.0)))
y = F.tanh(x)
x.name = 'x'
y.name = 'y'
y.backward(create_graph=True)

iters = 5

for i in range(iters):
    gx = x.grad
    x.cleargrad()
    gx.backward(create_graph=True)

gx = x.grad
gx.name = 'gx' + str(iters + 1)
plot_dot_graph(gx, verbose=False, to_file='../save/tanh.png')

Example #4

'''
Need the dot binary from the graphviz package (www.graphviz.org).
'''
import numpy as np
from dezero import Variable
from dezero.utils import plot_dot_graph


def goldstein(x0, x1):
    y = (1 + (x0 + x1 + 1)**2 * (19 - 14*x0 + 3*x0**2 - 14*x1 + 6*x0*x1 + 3*x1**2)) *\
        (30 + (2*x0 - 3*x1)**2 * (18 - 32*x0 + 12*x0**2 + 48*x1 - 36*x0*x1 + 27*x1**2))
    return y


x0 = Variable(np.array(1.0))
x1 = Variable(np.array(1.0))
y = goldstein(x0, x1)
y.backward()

x0.name = 'x0'
x1.name = 'x1'
y.name = 'y'
plot_dot_graph(y, verbose=False)

Example #5

File: step26.py Project: koi-7/deep_learning_from_scratch_3

#!/usr/bin/python3
# coding: utf-8

if '__file__' in globals():
    import os, sys
    sys.path.append(os.path.join(os.path.dirname(__file__), '..'))

import numpy as np
from dezero import Variable
from dezero.utils import plot_dot_graph


def goldstein(x, y):
    z = (1 + (x + y + 1)**2 * (19 - 14*x + 3*x**2 - 14*y + 6*x*y + 3*y**2)) * \
        (30 + (2*x - 3*y)**2 * (18 - 32*x + 12*x**2 + 48*y - 36*x*y + 27*y**2))
    return z


x = Variable(np.array(1.0))
y = Variable(np.array(1.0))
z = goldstein(x, y)
z.backward()

x.name = 'x'
y.name = 'y'
z.name = 'z'
plot_dot_graph(z, verbose=False, to_file='goldstein.png')

Example #6

File: step26.py Project: arizuk/dezero-shakyo

if '__file__' in globals():
    import os, sys
    sys.path.append(os.path.join(os.path.dirname(__file__), '..'))

import numpy as np
from dezero import Variable
from dezero.utils import plot_dot_graph

def goldstein(x, y):
    z = (1 + (x + y + 1)**2 * (19-14*x + 3*x**2 - 14*y + 6*x*y + 3*y**2)) * \
        (30 + (2*x - 3*y)**2 * (18-32*x + 12*x**2 + 48*y - 36*x*y + 27*y**2))
    return z


x = Variable(np.array(1.0))
y = Variable(np.array(1.0))
z = goldstein(x, y)
z.backward()

x.name = "x"
y.name = "y"
z.name = "z"

plot_dot_graph(z, verbose=False, to_file="goldstein.png")

Example #7

# coding: utf-8
if '__file__' in globals():
  import os, sys
  sys.path.append(os.path.join(os.path.dirname(__file__), '..'))

import numpy as np
from dezero import Variable
from dezero.utils import plot_dot_graph

def goldstein(x, y):
  z = (1 + (x+y+1)**2 * (19 - 14*x + 3*x**2 - 14*y + 6*x*y + 3*y**2)) * \
      (30 + (2*x - 3*y)**2 * (18 - 32*x + 12 *x**2 + 48*y-36*x*y+27*y**2))
  return z

x = Variable(np.array(1.0))
y = Variable(np.array(1.0))
z = goldstein(x, y)
z.backward()

# 変数に名前をつける
x.name = 'x'
y.name = 'y'
z.name = 'z'
plot_dot_graph(z, verbose=False, to_file='goldstein.png')

Example #8

File: step35.py Project: pacientes/Deep_Learning_from_Scratch_3

if "__file__" in globals():
    import os, sys

    sys.path.append(os.path.join(os.path.dirname(__file__), ".."))

import numpy as np
from dezero import Variable
from dezero.utils import plot_dot_graph
import dezero.functions as F

x = Variable(np.array(1.0))
y = F.tanh(x)
x.name = "x"
y.name = "y"
y.backward(create_graph=True)

iters = 0

for i in range(iters):
    gx = x.grad
    x.cleargrad()
    gx.backward(create_graph=True)

# 계산 그래프 그리기
gx = x.grad
gx.name = "gx" + str(iters + 1)
plot_dot_graph(gx, verbose=False, to_file="tanh.png")

Example #9

if "__file__" in globals():
    import os, sys

    sys.path.append(os.path.join(os.path.dirname(__file__), ".."))

import numpy as np
from dezero import Variable
from dezero.utils import plot_dot_graph


def goldstein(x, y):
    z = (1 + (x + y + 1) ** 2 * (19 - 14 * x + 3 * x ** 2 - 14 * y + 6 * x * y + 3 * y ** 2)) * (
        30 + (2 * x - 3 * y) ** 2 * (18 - 32 * x + 12 * x ** 2 + 48 * y - 36 * x * y + 27 * y ** 2)
    )
    return z


x = Variable(np.array(1.0))
y = Variable(np.array(1.0))
z = goldstein(x, y)
z.backward()

x.name = "x"
y.name = "y"
z.name = "z"

plot_dot_graph(z, verbose=False, to_file="goldstein.png")