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For each element in a Numpy array, return a copy with the trailing characters removed
To return a copy of an array with the trailing characters removed, use the numpy.char.rstrip() method in Python Numpy. The "chars" parameter is used to set a string specifying the set of characters to be removed. If omitted or None, the chars argument defaults to removing whitespace. The chars argument is not a prefix; rather, all combinations of its values are stripped.
The numpy.char module provides a set of vectorized string operations for arrays of type numpy.str_ or numpy.bytes_.
The chars parameter is a string specifying the set of characters to be removed. If omitted or None, the chars argument defaults to removing whitespace. The chars argument is not a suffix; rather, all combinations of its values are stripped.
Steps
At first, import the required library −
import numpy as np
Create a One-Dimensional array of string with some leading and trailing characters −
arr = np.array(['zzzzTomzzzz', 'zzzJohnzzzzz', 'zKatezzz', 'zAmyzzz', 'zBradzzzzzz'])
Displaying our array −
print("Array...
",arr)Get the datatype −
print("
Array datatype...
",arr.dtype)Get the dimensions of the Array −
print("
Array Dimensions...
",arr.ndim)Get the shape of the Array −
print("
Our Array Shape...
",arr.shape)Get the number of elements of the Array −
print("
Elements in the Array...
",arr.size)To return a copy of an array with the trailing characters removed, use the numpy.char.rstrip() method in Python Numpy. The "chars" parameter is used to set a string specifying the set of characters to be removed. If omitted or None, the chars argument defaults to removing whitespace. The chars argument is not a prefix; rather, all combinations of its values are stripped −
print("
Result...
",np.char.rstrip(arr, 'z'))
Example
import numpy as np
# Create a One-Dimensional array of string with some leading and trailing characters
arr = np.array(['zzzzTomzzzz', 'zzzJohnzzzzz', 'zKatezzz', 'zAmyzzz', 'zBradzzzzzz'])
# Displaying our array
print("Array...
",arr)
# Get the datatype
print("
Array datatype...
",arr.dtype)
# Get the dimensions of the Array
print("
Array Dimensions...
",arr.ndim)
# Get the shape of the Array
print("
Our Array Shape...
",arr.shape)
# Get the number of elements of the Array
print("
Number of elements in the Array...
",arr.size)
# To return a copy of an array with the trailing characters removed, use the numpy.char.rstrip() method in Python Numpy
# The "chars" parameter is used to set a string specifying the set of characters to be removed.
# If omitted or None, the chars argument defaults to removing whitespace.
# The chars argument is not a prefix; rather, all combinations of its values are stripped.
print("
Result...
",np.char.rstrip(arr, 'z'))Output
Array... ['zzzzTomzzzz' 'zzzJohnzzzzz' 'zKatezzz' 'zAmyzzz' 'zBradzzzzzz'] Array datatype... <U12 Array Dimensions... 1 Our Array Shape... (5,) Number of elements in the Array... 5 Result... ['zzzzTom' 'zzzJohn' 'zKate' 'zAmy' 'zBrad']
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