Witryna4 kwi 2012 · Method 1: try: value = a/b except ZeroDivisionError: value = float ('Inf') Method 2: if b != 0: value = a / b else: value = float ('Inf') But be aware that the value … Witryna3 lut 2024 · Following suggestion by @coldspeed you can obtain an index of elements containing inf s or nan s as idx = [i for i, arr in enumerate (f) if not np.isfinite (arr).all ()] There is a gotcha coming from idx.append (f.index (x)) that results in your error. It will return True if x is the first element of f and throw an error otherwise.
python - SMOTE 过采样 ValueError：输入包含 NaN、无穷大或对 …
WitrynaIEEE 754特殊值 NaN ， inf 和 -inf 将根据IEEE规则处理。 具体来说， NaN 不被认为接近任何其他值，包括 NaN 。 inf 和 -inf 只被认为接近自己。 3.5 新版功能. 参见 PEP 485 —— 用于测试近似相等的函数 math.isfinite(x) ¶ 如果 x 既不是无穷大也不是NaN，则返回 True ，否则返回 False 。 （注意 0.0 被认为 是 有限的。 ） 3.2 新版功能. … Witryna12 kwi 2024 · 可以使用 NumPy提供的np.isnan ()和np.isinf ()函数来检查是否存在NaN 或无穷大的值，然后使用 NumPy提供的np.nan_to_num ()函数将 NaN 或无穷大的值替换为 0。 float32 ValueError: Input contains NaN, inity or a value too large for dtype (' float32 ValueError: Input contains NaN, infinity or a value too large for dtype (‘ float32 ‘). financials sail
找出数组所有元素中或每行中、或每列中的最大值其中nan值被忽 …
Witryna23 lip 2012 · x = x [~numpy.isnan (x)] Explanation The inner function numpy.isnan returns a boolean/logical array which has the value True everywhere that x is not-a-number. Since we want the opposite, we use the logical-not operator ~ to get an array with True s everywhere that x is a valid number. Witryna29 kwi 2024 · How can you remove columns with NaN, +inf, and -inf values? All solutions I see here, mention only rows, but imagine I have a set of features from each element in the dataframe, how can I remove only the columns that contain +inf, -inf and NaN from each row in the dataframe? WitrynaYou could try the following to compute the average of the array arr. np.mean (arr [np.isfinite (arr)]) This will ignore both NaN s and Inf s. For example: arr = np.array ( [1, np.inf, 2, 3, np.nan, -np.inf]) np.mean (arr [np.isfinite (arr)]). # will produce 2.0 Share Follow answered Apr 16, 2024 at 22:58 Autonomous 8,845 1 37 77 Add a comment 1 g suite for email hosting