operations with empty strings | ljust () function

Michael Zippo 18.07.2021

numpy.core.defchararray.ljust (arr, width, fillchar = & # 39; & # 39;) — this is another function for doing string operations in numpy. Returns an array with left-aligned arr elements in a length-width string. It fills the remaining space of each element in the array with the fillchr parameter fillchr . If fillchr is not passed, the remaining spaces are filled with blank space.

Parameters:
arr: array_like of str or unicode.Input array.
width: The final width of the each string.
fillchar: The character to fill in remaining space.

Returns: Output array of str or unicode, depending on input type.

Code # 1:

# Python program explaining
# numpy.char.ljust () method

# numpy import

import numpy as geek

# input array

in_arr = geek.array ([ ’Numpy’ , ’ Python’ , ’Pandas’ ])

print ( "Input array:" , in_arr)

# set the width of each line to 8

width = 8

# output array when fillchar is not supplied

out_arr = geek.char.ljust (in_arr, width)

print ( " Output left justified array: " , out_arr)

Output :

 Input array: [’Numpy’’ Python’ ’Pandas’] Output left justified array: [’Numpy’ ’Python’ ’Pandas’]

Code # 2:

# Python program explaining
# numpy.char.ljust () method

# numpy import

import numpy as geek

# input array

in_arr = geek.array ([ ’Numpy’ , ’Python’ , ’ Pandas’ ])

print ( " Input array: " , in_arr)

# set the width of each line to 8

width = 8

# output array

out_arr = geek.char.ljust (in_arr, width, fillchar = ’*’ )

print ( "Output left justified array:" , out_ar r)

Exit:

 Input array: [’Numpy’’ Python’ ’Pandas’] Output left justified array: [’ Numpy *** ’’ Python ** ’’ Pandas ** ’]

Code # 3:

# Python program explaining
# numpy. char.ljust () method

# numpy import

import numpy as geek

# input array

in_arr = geek.array ([ ’1’ , ’11’ , ’ 111’ ])

print ( "Input array:" , in_arr)

# set the width of each line to 5

width = 5

#output array

out_arr = geek. char.ljust (in_arr, width, fillchar = ’-’ )

print ( "Output left justified array : " , out_arr)

Output:

 Input array: [’1’’ 11’ ’111’] Ou tput left justified array: [’1 ----’ ’11 ---’ ’111 -’]

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operations with empty strings | ljust () function

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