运行S3DIS数据时，epoch为0

[wlwnwafu]

亲爱的胡老师： 您好，我是一名本科生，最近在看您的文章，在运行的时候“sh jobs_6_fold_cv_s3dis.sh”这一条命令时，遇到了 “*EPOCH 0** Caught a NaN error : 3 2 root error(s) found. (0) Invalid argument: ValueError: attempt to get argmin of an empty sequence Traceback (most recent call last):

File "/home/wlw/.local/lib/python3.6/site-packages/tensorflow/python/ops/script_ops.py", line 209, in call ret = func(*args)

File "/home/wlw/.local/lib/python3.6/site-packages/tensorflow/python/data/ops/dataset_ops.py", line 514, in generator_py_func values = next(generator_state.get_iterator(iterator_id))

File "main_S3DIS.py", line 114, in spatially_regular_gen cloud_idx = int(np.argmin(self.min_possibility[split]))

File "<__array_function__ internals>", line 6, in argmin

File "/home/wlw/.local/lib/python3.6/site-packages/numpy/core/fromnumeric.py", line 1267, in argmin return _wrapfunc(a, 'argmin', axis=axis, out=out)

File "/home/wlw/.local/lib/python3.6/site-packages/numpy/core/fromnumeric.py", line 58, in _wrapfunc return _wrapit(obj, method, *args, **kwds)

File "/home/wlw/.local/lib/python3.6/site-packages/numpy/core/fromnumeric.py", line 47, in _wrapit result = getattr(asarray(obj), method)(*args, **kwds)

ValueError: attempt to get argmin of an empty sequence”这个错误，学生刚刚进入学习阶段，或许范一些很简单的错误，但还是希望您能不吝赐教，解答一下，十分感谢您的帮助。

[wlwnwafu]

查看log，里边是空的

[wlwnwafu]

也就是说训练时，epoch里边都是空的

[wlwnwafu]

@QingyongHu

[MrHynes]

你好 请问问题解决了吗？

[wlwnwafu]

你好 请问问题解决了吗？

是的，这是数据路径的问题，你要检查所有文件的数据路径，要把“/data/.......”的“/”去掉就可以解决了

[MrHynes]

你好 请问问题解决了吗？

是的，这是数据路径的问题，你要检查所有文件的数据路径，要把“/data/.......”的“/”去掉就可以解决了

已解决，非常感谢！

[YAOmmeng]

亲爱的胡老师： 您好，我是一名本科生，最近在看您的文章，在运行的时候“sh jobs_6_fold_cvs3dis.sh”这一条命令时，遇到了 “EPOCH 0_* Caught a NaN error : 3 2 root error(s) found. (0) Invalid argument: ValueError: attempt to get argmin of an empty sequence Traceback (most recent call last):

File "/home/wlw/.local/lib/python3.6/site-packages/tensorflow/python/ops/script_ops.py", line 209, in call ret = func(*args)

File "/home/wlw/.local/lib/python3.6/site-packages/tensorflow/python/data/ops/dataset_ops.py", line 514, in generator_py_func values = next(generator_state.get_iterator(iterator_id))

File "main_S3DIS.py", line 114, in spatially_regular_gen cloud_idx = int(np.argmin(self.min_possibility[split]))

File "<array_function internals>", line 6, in argmin

File "/home/wlw/.local/lib/python3.6/site-packages/numpy/core/fromnumeric.py", line 1267, in argmin return _wrapfunc(a, 'argmin', axis=axis, out=out)

File "/home/wlw/.local/lib/python3.6/site-packages/numpy/core/fromnumeric.py", line 58, in _wrapfunc return _wrapit(obj, method, *args, **kwds)

File "/home/wlw/.local/lib/python3.6/site-packages/numpy/core/fromnumeric.py", line 47, in _wrapit result = getattr(asarray(obj), method)(*args, **kwds)

ValueError: attempt to get argmin of an empty sequence”这个错误，学生刚刚进入学习阶段，或许范一些很简单的错误，但还是希望您能不吝赐教，解答一下，十分感谢您的帮助。

同学你好，我目前也在跑这个网络，想请教你一些问题，方便的话请加一下我的微信：Yaomengmeng_1996

[YuhangJi]

你好 请问问题解决了吗？

是的，这是数据路径的问题，你要检查所有文件的数据路径，要把“/data/.......”的“/”去掉就可以解决了

谢谢你，我的异常是计算出了NaN，也是路径的问题，/data...忘记改了 hahha

[xlxlqqq]

I think I have solved the problem.

1. When preparing the data by runing "python utils/data_prepare_s3dis.py", make sure the "/data/s3dis/xxx" in line14 is changed to "data/s3dis".
2. As well, change the "/data/s3dis" to "data/S3DIS" in the "main_S3DIS.py". (line 16)