Getting error: only one element tensors can be converted to Python scalars












1















Could you please help how to solve this problem. Basically, I'm trying to get into Pytorch tensor function data that is vector not scalar. X1 and X2 are basically columns in CSV file that contains many strings.
How to kind of iterate through every single data from x1 and x2 and not just trying to parse the whole vector. I'm a newbie at Python and Pytorch as well.



import torch
import random
import pandas

data = pandas.read_csv('train/train.tsv', sep='t')


learningrate = torch.tensor(0.01)
W = torch.rand([2, 2], dtype=torch.float, requires_grad=True)
b = torch.rand(2, dtype=torch.float, requires_grad=True)
U = torch.rand(2, dtype=torch.float, requires_grad=True)
c = torch.rand(1, dtype=torch.float, requires_grad=True)


def get_item():
x1 = torch.tensor(data['Powierzchnia w m2'],
dtype=torch.float, requires_grad=True)
x2 = torch.tensor(data['Liczba pokoi'],
dtype=torch.float, requires_grad=True)
x = torch.tensor([x1, x2], dtype=torch.float)
yexpected = torch.tensor(data['cena'].values, dtype=torch.float)
return x, yexpected


for _ in range(100000):

x, yexpected = get_item()
h = torch.sigmoid(W @ x+b)

print(x)
print(yexpected)
print(h)
y = torch.sigmoid(U@h+c)
loss = (y-yexpected)**2
print(loss)
loss.backward()
with torch.no_grad():
W -= learningrate * W.grad
b -= learningrate * b.grad
c -= learningrate * c.grad
U -= learningrate * U.grad
b.grad.zero_()
W.grad.zero_()
c.grad.zero_()
U.grad.zero_()









share|improve this question



























    1















    Could you please help how to solve this problem. Basically, I'm trying to get into Pytorch tensor function data that is vector not scalar. X1 and X2 are basically columns in CSV file that contains many strings.
    How to kind of iterate through every single data from x1 and x2 and not just trying to parse the whole vector. I'm a newbie at Python and Pytorch as well.



    import torch
    import random
    import pandas

    data = pandas.read_csv('train/train.tsv', sep='t')


    learningrate = torch.tensor(0.01)
    W = torch.rand([2, 2], dtype=torch.float, requires_grad=True)
    b = torch.rand(2, dtype=torch.float, requires_grad=True)
    U = torch.rand(2, dtype=torch.float, requires_grad=True)
    c = torch.rand(1, dtype=torch.float, requires_grad=True)


    def get_item():
    x1 = torch.tensor(data['Powierzchnia w m2'],
    dtype=torch.float, requires_grad=True)
    x2 = torch.tensor(data['Liczba pokoi'],
    dtype=torch.float, requires_grad=True)
    x = torch.tensor([x1, x2], dtype=torch.float)
    yexpected = torch.tensor(data['cena'].values, dtype=torch.float)
    return x, yexpected


    for _ in range(100000):

    x, yexpected = get_item()
    h = torch.sigmoid(W @ x+b)

    print(x)
    print(yexpected)
    print(h)
    y = torch.sigmoid(U@h+c)
    loss = (y-yexpected)**2
    print(loss)
    loss.backward()
    with torch.no_grad():
    W -= learningrate * W.grad
    b -= learningrate * b.grad
    c -= learningrate * c.grad
    U -= learningrate * U.grad
    b.grad.zero_()
    W.grad.zero_()
    c.grad.zero_()
    U.grad.zero_()









    share|improve this question

























      1












      1








      1








      Could you please help how to solve this problem. Basically, I'm trying to get into Pytorch tensor function data that is vector not scalar. X1 and X2 are basically columns in CSV file that contains many strings.
      How to kind of iterate through every single data from x1 and x2 and not just trying to parse the whole vector. I'm a newbie at Python and Pytorch as well.



      import torch
      import random
      import pandas

      data = pandas.read_csv('train/train.tsv', sep='t')


      learningrate = torch.tensor(0.01)
      W = torch.rand([2, 2], dtype=torch.float, requires_grad=True)
      b = torch.rand(2, dtype=torch.float, requires_grad=True)
      U = torch.rand(2, dtype=torch.float, requires_grad=True)
      c = torch.rand(1, dtype=torch.float, requires_grad=True)


      def get_item():
      x1 = torch.tensor(data['Powierzchnia w m2'],
      dtype=torch.float, requires_grad=True)
      x2 = torch.tensor(data['Liczba pokoi'],
      dtype=torch.float, requires_grad=True)
      x = torch.tensor([x1, x2], dtype=torch.float)
      yexpected = torch.tensor(data['cena'].values, dtype=torch.float)
      return x, yexpected


      for _ in range(100000):

      x, yexpected = get_item()
      h = torch.sigmoid(W @ x+b)

      print(x)
      print(yexpected)
      print(h)
      y = torch.sigmoid(U@h+c)
      loss = (y-yexpected)**2
      print(loss)
      loss.backward()
      with torch.no_grad():
      W -= learningrate * W.grad
      b -= learningrate * b.grad
      c -= learningrate * c.grad
      U -= learningrate * U.grad
      b.grad.zero_()
      W.grad.zero_()
      c.grad.zero_()
      U.grad.zero_()









      share|improve this question














      Could you please help how to solve this problem. Basically, I'm trying to get into Pytorch tensor function data that is vector not scalar. X1 and X2 are basically columns in CSV file that contains many strings.
      How to kind of iterate through every single data from x1 and x2 and not just trying to parse the whole vector. I'm a newbie at Python and Pytorch as well.



      import torch
      import random
      import pandas

      data = pandas.read_csv('train/train.tsv', sep='t')


      learningrate = torch.tensor(0.01)
      W = torch.rand([2, 2], dtype=torch.float, requires_grad=True)
      b = torch.rand(2, dtype=torch.float, requires_grad=True)
      U = torch.rand(2, dtype=torch.float, requires_grad=True)
      c = torch.rand(1, dtype=torch.float, requires_grad=True)


      def get_item():
      x1 = torch.tensor(data['Powierzchnia w m2'],
      dtype=torch.float, requires_grad=True)
      x2 = torch.tensor(data['Liczba pokoi'],
      dtype=torch.float, requires_grad=True)
      x = torch.tensor([x1, x2], dtype=torch.float)
      yexpected = torch.tensor(data['cena'].values, dtype=torch.float)
      return x, yexpected


      for _ in range(100000):

      x, yexpected = get_item()
      h = torch.sigmoid(W @ x+b)

      print(x)
      print(yexpected)
      print(h)
      y = torch.sigmoid(U@h+c)
      loss = (y-yexpected)**2
      print(loss)
      loss.backward()
      with torch.no_grad():
      W -= learningrate * W.grad
      b -= learningrate * b.grad
      c -= learningrate * c.grad
      U -= learningrate * U.grad
      b.grad.zero_()
      W.grad.zero_()
      c.grad.zero_()
      U.grad.zero_()






      python vector pytorch xor scalar






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      asked Nov 27 '18 at 17:34









      Dawid KubickiDawid Kubicki

      62




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