# Week 1, Assignment 2, Jazz, predict\_and\_sample **URL:** \ **Category:** Sequence Models\ **Tags:** coursera-platform\ **Created:** [August 13, 2021, 7:11pm UTC](https://community.deeplearning.ai/t/week-1-assignment-2-jazz-predict-and-sample/28687 "2021-08-13T19:11:48Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Pooriaaz92](https://avatars.discourse-cdn.com/v4/letter/p/7ea924/32.png) [@Pooriaaz92](https://community.deeplearning.ai/u/Pooriaaz92)\ **Post date:** [August 13, 2021, 7:11pm UTC](https://community.deeplearning.ai/t/week-1-assignment-2-jazz-predict-and-sample/28687/1 "2021-08-13T19:11:48Z")
Hi guys, I got this type of error after running the function predict\_and\_sample. I guess the problem with indices, but I’ve tried axis=0, -1, 1, 2, and all of theses got me an error. I should mention that before this cell I have no error. ValueError Traceback (most recent call last) in ----\> 1 results, indices = predict\_and\_sample(inference\_model, x\_initializer, a\_initializer, c\_initializer) 2 3 print(“np.argmax(results[12]) =”, np.argmax(results[12])) 4 print(“np.argmax(results[17]) =”, np.argmax(results[17])) 5 print(“list(indices[12:18]) =”, list(indices[12:18])) in predict\_and\_sample(inference\_model, x\_initializer, a\_initializer, c\_initializer) 24 pred = inference\_model.predict([x\_initializer, a\_initializer, c\_initializer]) 25 # Step 2: Convert “pred” into an np.array() of indices with the maximum probabilities —\> 26 indices = np.argmax(pred, axis=-1) 27 # Step 3: Convert indices to one-hot vectors, the shape of the results should be (1, ) 28 results = to\_categorical(indices, num\_classes=n\_values) \< **array\_function** internals\> in argmax(\*args, \*\*kwargs) /opt/conda/lib/python3.7/site-packages/numpy/core/fromnumeric.py in argmax(a, axis, out) 1184 1185 “”" → 1186 return \_wrapfunc(a, ‘argmax’, axis=axis, out=out) 1187 1188 /opt/conda/lib/python3.7/site-packages/numpy/core/fromnumeric.py in \_wrapfunc(obj, method, \*args, \*\*kwds) 56 bound = getattr(obj, method, None) 57 if bound is None: —\> 58 return \_wrapit(obj, method, \*args, \*\*kwds) 59 60 try: /opt/conda/lib/python3.7/site-packages/numpy/core/fromnumeric.py in \_wrapit(obj, method, \*args, \*\*kwds) 45 except AttributeError: 46 wrap = None —\> 47 result = getattr(asarray(obj), method)(\*args, \*\*kwds) 48 if wrap: 49 if not isinstance(result, mu.ndarray): **ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()** ---
**Author:** ![TMosh](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/tmosh/32/9321_2.png) [@TMosh](https://community.deeplearning.ai/u/TMosh)\ **Post date:** [August 13, 2021, 7:48pm UTC](https://community.deeplearning.ai/t/week-1-assignment-2-jazz-predict-and-sample/28687/2 "2021-08-13T19:48:39Z")
Try resetting the kernel and re-running all of the cells in the notebook. Then verify that every output cell passes all of the unit tests. ---
**Author:** ![Pooriaaz92](https://avatars.discourse-cdn.com/v4/letter/p/7ea924/32.png) [@Pooriaaz92](https://community.deeplearning.ai/u/Pooriaaz92)\ **Post date:** [August 13, 2021, 8:07pm UTC](https://community.deeplearning.ai/t/week-1-assignment-2-jazz-predict-and-sample/28687/3 "2021-08-13T20:07:13Z")
I did this many times dear but I still have this error!! I just realized that there is still _test\_utils.py_ instead of _public\_tests.py_ though I refresh the Lab. do you have any idea? ---
**Author:** ![Pooriaaz92](https://avatars.discourse-cdn.com/v4/letter/p/7ea924/32.png) [@Pooriaaz92](https://community.deeplearning.ai/u/Pooriaaz92)\ **Post date:** [August 13, 2021, 8:13pm UTC](https://community.deeplearning.ai/t/week-1-assignment-2-jazz-predict-and-sample/28687/4 "2021-08-13T20:13:41Z")
Oh, apparently I got this error after running the cell # UNIT TEST inference\_summary = summary(inference\_model) comparator(inference\_summary, music\_inference\_model\_out) * * * AttributeError Traceback (most recent call last) in 1 # UNIT TEST ----\> 2 inference\_summary = summary(inference\_model) 3 comparator(inference\_summary, music\_inference\_model\_out) ~/work/W1A3/test\_utils.py in summary(model) 36 result = 37 for layer in model.layers: —\> 38 descriptors = [layer. **class**. **name** , layer.output\_shape, layer.count\_params()] 39 if (type(layer) == Conv2D): 40 descriptors.append(layer.padding) /opt/conda/lib/python3.7/site-packages/tensorflow/python/keras/engine/base\_layer.py in output\_shape(self) 2190 'ill-defined for the layer. ’ 2191 'Use `get_output_shape_at(node_index)` ’ → 2192 ‘instead.’ % self.name) 2193 2194 @property **AttributeError: The layer “lstm” has multiple inbound nodes, with different output shapes. Hence the notion of “output shape” is ill-defined for the layer. Use `get_output_shape_at(node_index)` instead.** ---
**Author:** ![TMosh](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/tmosh/32/9321_2.png) [@TMosh](https://community.deeplearning.ai/u/TMosh)\ **Post date:** [August 13, 2021, 8:52pm UTC](https://community.deeplearning.ai/t/week-1-assignment-2-jazz-predict-and-sample/28687/5 "2021-08-13T20:52:52Z")
The “multiple inbound nodes” error has a lot of different causes. Search the Forum for that phrase, and you will find a lot of suggestions. ---
**Author:** ![TMosh](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/tmosh/32/9321_2.png) [@TMosh](https://community.deeplearning.ai/u/TMosh)\ **Post date:** [August 13, 2021, 8:53pm UTC](https://community.deeplearning.ai/t/week-1-assignment-2-jazz-predict-and-sample/28687/6 "2021-08-13T20:53:27Z")
> [@Pooriaaz92](#): > > there is still _test\_utils.py_ instead of _public\_tests.py_ New versions of the notebook do not necessarily delete old files you still had in your workspace. ---
**Author:** ![Pooriaaz92](https://avatars.discourse-cdn.com/v4/letter/p/7ea924/32.png) [@Pooriaaz92](https://community.deeplearning.ai/u/Pooriaaz92)\ **Post date:** [August 14, 2021, 4:54am UTC](https://community.deeplearning.ai/t/week-1-assignment-2-jazz-predict-and-sample/28687/7 "2021-08-14T04:54:19Z")
Thanks, I’ll try it. ---
**Author:** ![cppiod](https://avatars.discourse-cdn.com/v4/letter/c/e9a140/32.png) [@cppiod](https://community.deeplearning.ai/u/cppiod)\ **Post date:** [March 11, 2024, 1:06am UTC](https://community.deeplearning.ai/t/week-1-assignment-2-jazz-predict-and-sample/28687/8 "2024-03-11T01:06:49Z")
How it goes afterwards? I got the same error.