Found 1204 Articles for Numpy

Multiply the fractional part of two Numpy arrays with a scalar value

AmitDiwan
Updated on 07-Feb-2022 11:34:45

121 Views

To return the fractional and integral parts of array values, use the numpy.modf() method in Python Numpy. Multiply the fractional values using the index 0 values. The fractional and integral parts are negative if the given number is negative.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. A tuple (possible only as a keyword argument) must have length equal to the number of outputs.The condition is broadcast over the input. At locations where the condition is ... Read More

Return the fractional and integral parts of array values in Numpy

AmitDiwan
Updated on 07-Feb-2022 11:32:50

461 Views

To return the fractional and integral parts of array values, use the numpy.modf() method in Python Numpy. The fractional and integral parts are negative if the given number is negative.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. A tuple (possible only as a keyword argument) must have length equal to the number of outputs.The condition is broadcast over the input. At locations where the condition is True, the out array will be set to the ... Read More

Reduce a multi-dimensional array and multiply elements along axis 0 in Numpy

AmitDiwan
Updated on 07-Feb-2022 11:32:02

142 Views

To reduce a multi-dimensional array, use the np.ufunc.reduce() method in Python Numpy. Here, we have used multiply.reduce() to reduce it to the multiplication of elements. The axis is set using the "axis" parameter. Axis or axes along which a reduction is performed.A universal function (or ufunc for short) is a function that operates on ndarrays in an element-byelement fashion, supporting array broadcasting, type casting, and several other standard features.That is, a ufunc is a "vectorized" wrapper for a function that takes a fixed number of specific inputs and produces a fixed number of specific outputs.StepsAt first, import the required library ... Read More

Test element-wise for positive or negative infinity in Numpy

AmitDiwan
Updated on 07-Feb-2022 11:30:52

319 Views

To test element-wise for positive or negative infinity, use the numpy.isinf() method in Python Numpy. Returns a boolean array of the same shape as x, True where x == +/-inf, otherwise False.NumPy uses the IEEE Standard for Binary Floating-Point for Arithmetic (IEEE 754). Errors result if the second argument is supplied when the first argument is a scalar, or if the first and second arguments have different shapes.StepsAt first, import the required library −import numpy as npTo test element-wise for positive or negative infinity, use the numpy.isinf() method in Python Numpy.Checking for numbers −print("Infinite? ", np.isinf(1)) print("Infinite? ", np.isinf(0))Checking for float ... Read More

Reduce a multi-dimensional array and multiply elements along specific axis in Numpy

AmitDiwan
Updated on 07-Feb-2022 11:29:45

579 Views

To reduce a multi-dimensional array, use the np.ufunc.reduce() method in Python Numpy. Here, we have used multiply.reduce() to reduce it to the multiplication of elements. The axis is set using the "axis" parameter. Axis or axes along which a reduction is performed.The numpy.ufunc has functions that operate element by element on whole arrays. The ufuncs are written in C (for speed) and linked into Python with NumPy’s ufunc facility. A universal function (or ufunc for short) is a function that operates on ndarrays in an element-by-element fashion, supporting array broadcasting, type casting, and several other standard features. That is, a ... Read More

Test array values for finiteness and store the result in a new location in Numpy

AmitDiwan
Updated on 07-Feb-2022 11:28:29

102 Views

To test array values for finiteness, use the numpy.isfinite() method in Python Numpy. The new location where we will store the result is a new array. Returns True where x is not positive infinity, negative infinity, or NaN; false otherwise. This is a scalar if x is a scalar.This 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 that if an uninitialized out array is created via the default out=None, locations within it where the condition ... Read More

Reduce a multi-dimensional array and add elements in Numpy

AmitDiwan
Updated on 07-Feb-2022 11:27:21

387 Views

To reduce a multi-dimensional array, use the np.ufunc.reduce() method in Python Numpy. Here, we have used add.reduce() to reduce it to the addition of elements.The numpy.ufunc has functions that operate element by element on whole arrays. The ufuncs are written in C (for speed) and linked into Python with NumPy’s ufunc facility. A universal function (or ufunc for short) is a function that operates on ndarrays in an element-by-element fashion, supporting array broadcasting, type casting, and several other standard features. That is, a ufunc is a “vectorized” wrapper for a function that takes a fixed number of specific inputs and ... Read More

Test array values for finiteness in Numpy

AmitDiwan
Updated on 07-Feb-2022 11:26:18

159 Views

To test array values for finiteness, use the numpy.isfinite() method in Python Numpy. Returns True where x is not positive infinity, negative infinity, or NaN; false otherwise. This is a scalar if x is a scalar.This 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 that if an uninitialized out array is created via the default out=None, locations within it where the condition is False will remain uninitialized.StepsAt first, import the required library −import numpy as ... Read More

Compare two Numpy arrays and return the element-wise minimum ignoring NaNs

AmitDiwan
Updated on 07-Feb-2022 11:24:00

334 Views

To compare two arrays and return the element-wise minimum ignoring NaNs, use the numpy.fmin() method in Python Numpy. Return value is either True or False.Compare two arrays and returns a new array containing the element-wise maxima. If one of the elements being compared is a NaN, then the non-nan element is returned. If both elements are NaNs then the first is returned. The latter distinction is important for complex NaNs, which are defined as at least one of the real or imaginary parts being a NaN. The net effect is that NaNs are ignored when possible.StepsAt first, import the required ... Read More

Compare two Numpy arrays and return the element-wise maximum with fmax()

AmitDiwan
Updated on 07-Feb-2022 11:21:50

554 Views

To compare two arrays and return the element-wise maximum, use the numpy.fmax() method in Python Numpy. Return value is either True or False.Compare two arrays and returns a new array containing the element-wise maxima. If one of the elements being compared is a NaN, then the non-nan element is returned. If both elements are NaNs then the first is returned. The latter distinction is important for complex NaNs, which are defined as at least one of the real or imaginary parts being a NaN. The net effect is that NaNs are ignored when possible.StepsAt first, import the required library −import ... Read More

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