AmitDiwan has Published 10744 Articles

Return the Upper triangle of an array and set the diagonal above to zero elements in Numpy

AmitDiwan

AmitDiwan

Updated on 17-Feb-2022 09:34:17

646 Views

To return the upper triangle of an array, use the numpy.triu() method in Python Numpy −The 1st parameter is the input arrayThe 2nd parameter is the 'k' i.e. the diagonal above which to zero elements.Here, k = 0 (the default) is the main diagonal, k < 0 is below it ... Read More

Create a record array from a (flat) list of array in Numpy

AmitDiwan

AmitDiwan

Updated on 17-Feb-2022 09:28:55

324 Views

To create a record array from a (flat) list of array, use the numpy.core.records.fromarrays() method in Python Numpy. It returns the record array consisting of given arrayList columns.The first parameter is a List of array-like objects (such as lists, tuples, and ndarrays). The dtype is the valid dtype for all ... Read More

Expand the shape of an array over axis 1 in Numpy

AmitDiwan

AmitDiwan

Updated on 17-Feb-2022 09:13:09

3K+ Views

To expand the shape of an array, use the numpy.expand_dims() method. Insert a new array that will appear at the axis position in the expanded array shape. The function returns the View of the input array with the number of dimensions increased.NumPy offers comprehensive mathematical functions, random number generators, linear ... Read More

Unpack elements of a uint8 array into a binary-valued output array over specific axis in Numpy

AmitDiwan

AmitDiwan

Updated on 16-Feb-2022 13:05:31

369 Views

To unpack elements of a uint8 array into a binary-valued output array, use the numpy.unpackbits() method in Python Numpy. The result is binary-valued (0 or 1). The axis is the dimension over which bit-unpacking is done. The axis is set using the "axis" parameter.Each element of the input array represents ... Read More

Pack the elements of a binary-valued Numpy array into bits in a uint8 array over axis 1

AmitDiwan

AmitDiwan

Updated on 16-Feb-2022 13:01:39

152 Views

To pack the elements of a binary-valued array into bits in a uint8 array, use the numpy.packbits() method in Python Numpy. The result is padded to full bytes by inserting zero bits at the end. The axis is set using the axis parameter. The axis is the dimension over which ... Read More

Pack the elements of a binary-valued array into bits in a uint8 array over specific axis in Numpy

AmitDiwan

AmitDiwan

Updated on 16-Feb-2022 12:56:58

181 Views

To pack the elements of a binary-valued array into bits in a uint8 array, use the numpy.packbits() method in Python Numpy. The result is padded to full bytes by inserting zero bits at the end. The axis is set using the axis parameter. The axis is the dimension over which ... Read More

Compute the bit-wise NOT of a boolean array in Numpy

AmitDiwan

AmitDiwan

Updated on 16-Feb-2022 12:38:04

768 Views

To compute the bit-wise NOT of a boolean array, use the numpy.bitwise_not() method in Python Numpy. Computes the bit-wise NOT of the underlying binary representation of the integers in the input arrays. This ufunc implements the C/Python operator ˜.The where parameter is the condition broadcast over the input. At locations ... Read More

Compute the bit-wise XOR of two One-Dimensional Numpy arrays element-wise

AmitDiwan

AmitDiwan

Updated on 16-Feb-2022 12:34:22

175 Views

To compute the bit-wise OR of two 1D arrays element-wise, use the numpy.bitwise_xor() method in Python Numpy. Computes the bit-wise XOR of the underlying binary representation of the integers in the input arrays. This ufunc implements the C/Python operator ^.The 1st and 2nd parameter are the arrays, only integer and ... Read More

Return the Lower triangle of an array and zero elements just below the main diagonal in Numpy

AmitDiwan

AmitDiwan

Updated on 16-Feb-2022 11:37:20

1K+ Views

To return the lower triangle of an array, use the numpy.tril() method in Python Numpy. The 1st parameter is the input array. The 2nd parameter is the 'k' i.e. the diagonal above which to zero elements. Here, k = 0 (the default) is the main diagonal, k < 0 is ... Read More

Return the Upper triangle of an array in Numpy

AmitDiwan

AmitDiwan

Updated on 16-Feb-2022 11:26:01

314 Views

To return the upper triangle of an array, use the numpy.triu() method in Python Numpy. The 1st parameter is the input array. The function returns a copy of an array with the elements below the kth diagonal zeroed. For arrays with ndim exceeding 2, triu will apply to the final ... Read More

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