Return Indices of Maximum Values from Masked Array in NumPy

AmitDiwan
Updated on 04-Feb-2022 06:13:20

380 Views

To return array of indices of the maximum values, use the ma.MaskedArray.argmax() method in Numpy. Masked values are treated as if they had the value "fill_value". The "fill_value" is a parameter i.e. Value used to fill in the masked values.For axis, If None, the index is into the flattened array, otherwise along the specified axis. The out is the array into which the result can be placed. Its type is preserved and it must be of the right shape to hold the output.A masked array is the combination of a standard numpy.ndarray and a mask. A mask is either nomask, indicating ... Read More

Return the Transpose of the Masked Array in NumPy

AmitDiwan
Updated on 04-Feb-2022 06:10:00

222 Views

To return the transpose of the masked array in Python, use the ma.MaskedArray.transpose() method in Numpy.The axes can be, None or no argument − reverses the order of the axes.tuple of ints − i in the j-th place in the tuple means a’s i-th axis becomes a.transpose()’s j-th axis.n ints − same as an n-tuple of the same intsStepsAt first, import the required library −import numpy as np import numpy.ma as maCreate an array with int elements using the numpy.array() method −arr = np.array([[49, 85, 45], [67, 33, 59]]) print("Array...", arr) print("Array type...", arr.dtype)Get the dimensions of the Array −print("Array ... Read More

Declare Interface Members as Private or Protected in Java 8

Maruthi Krishna
Updated on 04-Feb-2022 06:05:47

6K+ Views

Interface in Java is similar to a class but, it contains only abstract methods and fields which are final and static.Since all the methods are abstract you cannot instantiate it. To use it, you need to implement this interface using a class and provide body to all the abstract methods in it.Private members of an interfaceIf the members of the interface are private you cannot provide implementation to the methods or, cannot access the fields of it in the implementing class.Therefore, the members of an interface cannot be private. If you try to declare the members of an interface private, ... Read More

View of Masked Array with Transposed Axes in NumPy

AmitDiwan
Updated on 04-Feb-2022 05:57:32

129 Views

To return a view of the array with axes transposed in Python, use the ma.MaskedArray.transpose() method in Numpy. For a 1-D array this has no effect, as a transposed vector is simply the same vector. To convert a 1-D array into a 2D column vector, an additional dimension must be added. np.atleast2d(a).T achieves this, as does a[:, np.newaxis]. For a 2-D array, this is a standard matrix transpose.The axes can be, None or no argument − reverses the order of the axes.tuple of ints − i in the j-th place in the tuple means a’s i-th axis becomes a.transpose()’s j-th ... Read More

View of Masked Array with Axes Transposed in NumPy

AmitDiwan
Updated on 04-Feb-2022 05:55:55

130 Views

To return a view of the array with axes transposed, use the ma.MaskedArray.transpose() method in Numpy. For a 1-D array this has no effect, as a transposed vector is simply the same vector. To convert a 1-D array into a 2D column vector, an additional dimension must be added. np.atleast2d(a).T achieves this, as does a[:, np.newaxis]. For a 2-D array, this is a standard matrix transpose.The axes can be, None or no argument − reverses the order of the axes.tuple of ints − i in the j-th place in the tuple means a’s i-th axis becomes a.transpose()’s j-th axis.n ints ... Read More

View of Masked Array with Interchanged Axes in NumPy

AmitDiwan
Updated on 04-Feb-2022 05:53:55

135 Views

To return a view of the array with axis1 and axis2 interchanged, use the ma.MaskedArray.swapaxes() method in Numpy.For NumPy >= 1.10.0, if a is an ndarray, then a view of a is returned; otherwise a new array is created. For earlier NumPy versions a view of a is returned only if the order of the axes is changed, otherwise the input array is returned.A masked array is the combination of a standard numpy.ndarray and a mask. A mask is either nomask, indicating that no value of the associated array is invalid, or an array of booleans that determines for each ... Read More

Remove Axes of Length One from Masked Array in NumPy

AmitDiwan
Updated on 04-Feb-2022 05:52:24

228 Views

To remove axes of length one in Python, use the ma.MaskedArray.squeeze() method in Numpy. Returns the input array, but with all or a subset of the dimensions of length 1 removed. This is always a itself or a view into a. Note that if all axes are squeezed, the result is a 0d array and not a scalar.A masked array is the combination of a standard numpy.ndarray and a mask. A mask is either nomask, indicating that no value of the associated array is invalid, or an array of booleans that determines for each element of the associated array whether ... Read More

Return Masked Array with New Shape in Column-Major Order in NumPy

AmitDiwan
Updated on 04-Feb-2022 05:49:55

155 Views

To return a masked array containing the same data, but with a new shape, use the ma.MaskedArray.reshape() method in Numpy. Give a new shape to the array without changing its data. The order is set using the "order" parameter. The 'F' order determines whether the array data should be viewed as in FORTRAN i.e. F (column-major).The new shape should be compatible with the original shape. If an integer is supplied, then the result will be a 1-D array of that length.The order determines whether the array data should be viewed as in C (row-major) or FORTRAN (column-major) order. Returns a ... Read More

Return a Masked Array in NumPy with New Shape

AmitDiwan
Updated on 04-Feb-2022 05:41:41

157 Views

To return a masked array containing the same data, but with a new shape, use the ma.MaskedArray.reshape() method in Numpy. Give a new shape to the array without changing its data. The order is set using the "order" parameter. The 'C' order determines whether the array data should be viewed as in C (row-major).The new shape should be compatible with the original shape. If an integer is supplied, then the result will be a 1-D array of that length.The order determines whether the array data should be viewed as in C (row-major) or FORTRAN (column-major) order. Returns a masked array ... Read More

Inner Product of Two Masked One-Dimensional Arrays in NumPy

AmitDiwan
Updated on 03-Feb-2022 13:18:15

183 Views

To return the inner product of two masked arrays, use the ma.inner() method in Python Numpy. Ordinary inner product of vectors for 1-D arrays (without complex conjugation), in higher dimensions a sum product over the last axes.The out parameter suggests, if both the arrays are scalars or both 1-D arrays then a scalar is returned; otherwise an array is returned. out.shape = (*a.shape[:-1], *b.shape[:-1]).A masked array is the combination of a standard numpy.ndarray and a mask. A mask is either nomask, indicating that no value of the associated array is invalid, or an array of booleans that determines for each ... Read More

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