Je suis en train de développer the tflearn example for linear regression en augmentant le nombre de colonnes à 21.données Mise en forme de régression linéaire avec TFlearn
from trafficdata import X,Y
import tflearn
print(X.shape) #(1054, 21)
print(Y.shape) #(1054,)
# Linear Regression graph
input_ = tflearn.input_data(shape=[None,21])
linear = tflearn.single_unit(input_)
regression = tflearn.regression(linear, optimizer='sgd', loss='mean_square',
metric='R2', learning_rate=0.01)
m = tflearn.DNN(regression)
m.fit(X, Y, n_epoch=1000, show_metric=True, snapshot_epoch=False)
print("\nRegression result:")
print("Y = " + str(m.get_weights(linear.W)) +
"*X + " + str(m.get_weights(linear.b)))
Cependant, tflearn se plaint:
Traceback (most recent call last):
File "linearregression.py", line 16, in <module>
m.fit(X, Y, n_epoch=1000, show_metric=True, snapshot_epoch=False)
File "/usr/local/lib/python3.5/dist-packages/tflearn/models/dnn.py", line 216, in fit
callbacks=callbacks)
File "/usr/local/lib/python3.5/dist-packages/tflearn/helpers/trainer.py", line 339, in fit
show_metric)
File "/usr/local/lib/python3.5/dist-packages/tflearn/helpers/trainer.py", line 818, in _train
feed_batch)
File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/client/session.py", line 789, in run
run_metadata_ptr)
File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/client/session.py", line 975, in _run
% (np_val.shape, subfeed_t.name, str(subfeed_t.get_shape())))
ValueError: Cannot feed value of shape (64,) for Tensor 'TargetsData/Y:0', which has shape '(21,)'
J'ai trouvé la forme (64,) provient de la taille de lot par défaut de tflearn.regression().
Ai-je besoin de transformer les étiquettes (Y)? De quelle façon?
Merci!