Hi again,
I'm obviously new to theano. I've been reading through the tutorial
because I am triyng to manipulate data from a lasagne neural net.
One thing I'd like to do is cutoff values in the stored array at a min and
max. I'm having trouble however even getting the array to multiply by a
value. With the c function I am simply trying to multiply the values by a
number but even that's not working.
Sorry for my ignorance but can anyone please tell me how I can accomplish
what I'd like to do?
Here's the test code that fails:
import numpy as np
import theano
from theano import tensor as T
import math
test_array = np.reshape(np.array([[2, 1., 1.],
[1., -10., 1.],
[1., 1., 1.]]),
(1,1,3,3))
test_tensor = T.tensor4('test_tensor')
test_tensor = theano.shared(test_array)
print(test_tensor)
print(test_tensor.get_value())
#works above this line then fails
a = T.tensor4()
b = T.minimum(255, T.maximum(0, 255 * a))
c = 255 * a
min_max = theano.function([a], b)
tens_mult = theano.function([a], c)
print(min_max(test_tensor))
print(tens_mult(test_tensor))
update_tensor = min_max(test_tensor)
print(update_tensor.get_value())
Thank you,
MGP
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