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Return the numeric string left-filled with zeros in Numpy
To return the numeric string left-filled with zeros, use the numpy.char.zfill() method in Python Numpy. Here,
The 1st parameter is the inout array
The 2nd parameter is the "width" i.e. the width of string to left-fill elements in array
The numpy.char module provides a set of vectorized string operations for arrays of type numpy.str_ or numpy.bytes_.
Steps
At first, import the required library −
import numpy as np
Create a One-Dimensional array of string −
arr = np.array(['Tom', 'John', 'Kate', 'Amy', 'Brad'])
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 the numeric string left-filled with zeros, use the numpy.char.zfill() method −
print("
Result...
",np.char.zfill(arr, width = 15))
Example
import numpy as np
# Create a One-Dimensional array of string
arr = np.array(['Tom', 'John', 'Kate', 'Amy', 'Brad'])
# 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 the numeric string left-filled with zeros, use the numpy.char.zfill() method in Python Numpy
# The 1st parameter is the inout array
# The 2nd parameter is the "width" i.e the width of string to leftfill elements in array
print("
Result...
",np.char.zfill(arr, width = 15))Output
Array... ['Tom' 'John' 'Kate' 'Amy' 'Brad'] Array datatype... <U4 Array Dimensions... 1 Our Array Shape... (5,) Number of elements in the Array... 5 Result... ['000000000000Tom' '00000000000John' '00000000000Kate' '000000000000Amy' '00000000000Brad']
Updated on: 22-Feb-2022
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