Found 1204 Articles for Numpy

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

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

783 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 below it and k > 0 is above.The k = -2 value is to zero elements just below the main diagonalThe function returns a copy of an array with elements above the k-th diagonal zeroed. For arrays with ndim exceeding 2, tril will apply to the final two axes.StepsAt first, ... Read More

Return the Lower triangle of an array and zero the main diagonal as well in Numpy

AmitDiwan
Updated on 16-Feb-2022 11:09:31

97 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 below it and k > 0 is above.The k = -1 value is to zero the main diagonal as wellThe function returns a copy of an array with elements above the k-th diagonal zeroed. For arrays with ndim exceeding 2, tril will apply to the final two axes.StepsAt first, import ... Read More

Return the truncated value of the inputs in Numpy

AmitDiwan
Updated on 16-Feb-2022 11:06:57

132 Views

To return the truncated value of the input, use the numpy.trunc() method in Python Numpy. The function returns the truncated value of each element in x. This is a scalar if x is a scalar. The truncated value of the scalar x is the nearest integer i which is closer to zero than x is. In short, the fractional part of the signed number x is discarded.The condition is broadcast over the input. At locations where the condition is True, the out array will be set to the ufunc result. Elsewhere, the out array will retain its original value. Note ... Read More

Return the truncated value of the array elements in Numpy

AmitDiwan
Updated on 16-Feb-2022 11:03:34

1K+ Views

To return the truncated value of the array elements, use the numpy.trunc() method in Python Numpy. The function returns the truncated value of each element in x. This is a scalar if x is a scalar. The truncated value of the scalar x is the nearest integer i which is closer to zero than x is. In short, the fractional part of the signed number x is discarded.The out is a location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or None, a freshly-allocated array is returned. ... Read More

Return the floor of a specific array element in Numpy

AmitDiwan
Updated on 16-Feb-2022 10:57:53

92 Views

To return the floor of a specific array element, use the index value in the numpy.floor() method in Python Numpy. The floor of the scalar x is the largest integer i, such that i

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

AmitDiwan
Updated on 16-Feb-2022 10:53:06

282 Views

To return the lower triangle of an array, use the numpy.tril() 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.k = 0 (the default) is the main diagonal, k 0 is above.The function returns a copy of an array with elements above the k-th diagonal zeroed. For arrays with ndim exceeding 2, tril will apply to the final two axes.StepsAt first, import the required library −import numpy as npCreate a 2d array −arr = np.array([[36, 36, 78, 88], [92, 81, 98, 45], [22, 67, ... Read More

Create an array with ones at and below the given diagonal and zeros elsewhere with a different output type in Numpy

AmitDiwan
Updated on 16-Feb-2022 10:49:03

73 Views

To create an array with ones at and below the given diagonal and zeros elsewhere, use the numpy.tri() method in Python NumpyThe 1st parameter is the number of rows in the arrayThe 2nd parameter is the number of columns in the arrayThe "type" parameter is used to set the type of the returned arrayThe tri() function returns an array with its lower triangle filled with ones and zero elsewhere; in other words T[i,j] == 1 for j

Create an array with ones at and below the given diagonal and zeros elsewhere in Numpy

AmitDiwan
Updated on 16-Feb-2022 10:45:35

246 Views

To create an array with ones at and below the given diagonal and zeros elsewhere, use the numpy.tri() method in Python Numpy −The 1st parameter is the number of rows in the arrayThe 2nd parameter is the number of columns in the arrayThe tri() function returns an array with its lower triangle filled with ones and zero elsewhere; in other words T[i,j] == 1 for j

Create a two-dimensional array with the flattened input as lower diagonal in Numpy

AmitDiwan
Updated on 16-Feb-2022 10:41:35

88 Views

To create a two-dimensional array with the flattened input as a diagonal, use the numpy.diagflat() method in Python Numpy. The 'K parameter is used to set the diagonal; 0, the default, corresponds to the “main” diagonal, a negative k giving the number of the diagonal below the main.The first parameter is the input data, which is flattened and set as the k-th diagonal of the output. The second parameter is the diagonal to set; 0, the default, corresponds to the “main” diagonal, a positive (negative) k giving the number of the diagonal above (below) the main.NumPy offers comprehensive mathematical functions, ... Read More

Create a two-dimensional array with the flattened input as an upper diagonal in Numpy

AmitDiwan
Updated on 16-Feb-2022 10:37:53

133 Views

To create a two-dimensional array with the flattened input as a diagonal, use the numpy.diagflat() method in Python Numpy. The 'K parameter is used to set the diagonal; 0, the default, corresponds to the “main” diagonal, a positive (negative) k giving the number of the diagonal above (below) the main.The first parameter is the input data, which is flattened and set as the k-th diagonal of the output. The second parameter is the diagonal to set; 0, the default, corresponds to the “main” diagonal, a positive (negative) k giving the number of the diagonal above (below) the main.NumPy offers comprehensive ... Read More

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