Use tensorboard to draw two curves in one picture in Pytorch (error report: NotImplementedError: Got ＜class 'dict'＞, but numpy array, torch)

Up code

from torch.utils.tensorboard import SummaryWriter

writer=SummaryWriter("log2")

for i in range(100):
     writer.add_scalars('haha', {
    
    'Train':i*i*3+0.5}, i)
     writer.add_scalars('haha', {
    
    'Test': i*i}, i)
writer.close()
#############################################
!!!是add_scalars而不是add_scalar
有一个s!
#############################################

否则报错:

NotImplementedError: Got <class ‘dict’>, but numpy array, torch tensor, or caffe2 blob name are expected.

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