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. To set the number of elements ... Read More

To create a record array from a (flat) list of array, use the numpy.core.records.fromarrays() method in Python Numpy. The names is set using the "names" parameter. The field names, either specified as a comma-separated string in the form 'col1, col2, col3', or as a list or tuple of strings in ... Read More

To shift the bits of an integer to the left, use the numpy.left_shift() method in Python Numpy. Bits are shifted to the left by appending x2 0s at the right of x1. Since the internal representation of numbers is in binary format, this operation is equivalent to multiplying x1 by ... Read More

To build a block of matrix, use the numpy.block() method in Python Numpy. Blocks in the innermost lists are concatenated along the last dimension (-1), then these are concatenated along the secondlast dimension (-2), and so on until the outermost list is reached.Blocks can be of any dimension, but will ... Read More

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 the dimension over which bit-packing is done. None implies packing the flattened array. ... Read More

To compare and return True if an array is less than another array, use the numpy.char.less() method in Python Numpy. The arr1 and arr2 are the two input string arrays of the same shape.Unlike numpy.greater, this comparison is performed by first stripping whitespace characters from the end of the string. ... Read More

To join a sequence of arrays, use the numpy.stack() method in Python Numpy. The axis parameter specifies the index of the new axis in the dimensions of the result. If axis=0 it will be the first dimension and if axis=-1 it will be the last dimension.The function returns the stacked ... Read More

To return a list of the lines in the element, breaking at line boundaries, use the numpy.char.splitlines() method in Python Numpy. The 1st parameter is the input array.The keepends parameter suggests that the Line breaks are not included in the resulting list unless keepends is given and true. The function ... Read More

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

A new array from the set of choices is constructed using the numpy.ma.choose() method in Python Numpy. Given an array of integers and a list of n choice arrays, this method will create a new array that merges each of the choice arrays. Where a value in index is i, ... Read More