np array multiple index
Try like this: >>> arr = np.array([100.10, 200.42, 4.14, 89.00, 34.55, 1.12]) >>> arr[[1,4,5]] array([ 200.42, 34.55, 1.12]). And for multidimensional arrays: ,Array indexing refers to any use of the square brackets ([]) to index array values. There are many options to indexing, which give numpy indexing great power, ...
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 np array multiple index 相關參考資料
Add multiple values to one numpy array index - Stack Overflow
This is what the at method of NumPy ufuncs is for: output = numpy.zeros(size) numpy.add.at(output, a[a.cond].ix, a[a.cond].val). https://stackoverflow.com How to get the values from a NumPy array using multiple indices ...
Try like this: >>> arr = np.array([100.10, 200.42, 4.14, 89.00, 34.55, 1.12]) >>> arr[[1,4,5]] array([ 200.42, 34.55, 1.12]). And for multidimensional arrays: https://stackoverflow.com Indexing Multi-dimensional arrays - NumPy
Array indexing refers to any use of the square brackets ([]) to index array values. There are many options to indexing, which give numpy indexing great power, ... https://www.numpy.org Indexing Multi-dimensional arrays - Numpy and Scipy Documentation
Array indexing refers to any use of the square brackets ([]) to index array values. There are many options to indexing, which give numpy ... https://docs.scipy.org Indexing — NumPy v1.13 Manual
Array indexing refers to any use of the square brackets ([]) to index array ... except that they can be applied to multiple dimensions as well. A few ... https://docs.scipy.org Indexing — NumPy v1.16 Manual - Numpy and Scipy Documentation
Basic slicing extends Python's basic concept of slicing to N dimensions. ... The simplest case of indexing with N integers returns an array scalar ..... is the most important thing to remember abo... https://docs.scipy.org NumPy's array indexing - Numpy and Scipy Documentation - SciPy.org
Array indexing refers to any use of the square brackets ([]) to index array ... except that they can be applied to multiple dimensions as well. https://docs.scipy.org numpy.take — NumPy v1.16 Manual - Numpy and Scipy Documentation
Take elements from an array along an axis. When axis is not ... along a given axis. A call such as np.take(arr, indices, axis=3) is equivalent to arr[:,:,:,indices,...] . https://docs.scipy.org Numpy: Indices of multiple values - Stack Overflow
With numpy, you can vectorize this by first finding the indices of elements that are in indList and then setting them to be zero. A = np.array([[1, 6, ... https://stackoverflow.com |